Patients must not have known active hepatitis B virus (HBV) or hepatitis virus (HCV) infection at time of registration; patients with HBV or HCV that have an undetectable viral load, or in the opinion of the treating investigator is well-controlled, are eligible Patients with hepatitis C virus (HCV) infection are eligible provided they meet the other eligibility criteria and:\r\n* They have previously undergone curative therapy and have no evidence of active HCV infection\r\n* They have no evidence of liver damage owing to prior HCV infection Patients with active HCV infection should be referred for HCV treatment and standard radiotherapy for the plasmacytoma Active hepatitis C (defined as a positive HCV viral load) Active infection (any infection requiring systemic treatment). Hepatitis B or C [HBV/HCV] is allowed Escalation part: Active Hepatitis B (HBV) or Hepatitis C (HCV) virus infection at screening. Expansion part: Patients with active HBV or HCV are excluded, excepting those patients undergoing treatment for HBV or HCV. Active hepatitis C (HCV) infection without treatment is permitted; concomitant treatment of HCV is not permitted on this study Subjects with known active hepatitis B virus (HBV) or hepatitis C virus (HCV) (cannot have an elevated viral load of HBV or HCV if known history) are ineligible Subjects with chronic infection by hepatitis C virus (HCV) who are untreated or who failed previous therapies for HCV are allowed on study; in addition, subjects with successful HCV treatment (defined as sustained virologic response [SVR] 12 or SVR 24) are allowed as long as 4 weeks have passed between completion of HCV therapy and start of study drug Dual infection with HBV/HCV or other hepatitis combinations at study entry Active Hepatitis B or C determined by a detectable viral load of HBV or HCV. Active bacterial, fungal or viral infection including hepatitis B (HBV), hepatitis C (HCV) Patients with known hepatitis B or C virus (hepatitis B virus [HBV] or hepatitis C virus [HCV]) infection are eligible provided liver function parameters meet laboratory eligibility criteria\r\n* Patients with active HBV infection must have monitoring of viral load and demonstrate adequate treatment with appropriate antiviral therapy according to institutional practice\r\n* Patients with active HCV infection must have monitoring of liver function tests and viral load if indicated according to institutional practice Known chronic hepatitis B or C (HBV/HCV) infection. Active hepatitis B (HBV) or hepatitis C (HCV) infection Subjects are eligible to enroll if they have non-viral-HCC, or if they have hepatitis B virus (HBV)HCC, or hepatitis C virus (HCV)-HCC defined as follows:\r\n* HBV-HCC: controlled (treated) hepatitis B subjects will be allowed if they meet the following criteria:\r\n** Antiviral therapy for HBV must be given for at least 12 weeks and HBV viral load must be less than 100 IU/mL prior to first dose of study drug. Subjects on active HBV therapy with viral loads under 100 IU/ml should stay on the same therapy throughout study treatment. Subjects who are hepatitis B virus core antibody (anti-HBc) (+), negative for hepatitis B surface antigen (HBsAg), negative for hepatitis B virus surface antibody (anti-HBs), and have an HBV viral load under 100 IU/mL do not require HBV anti-viral prophylaxis\r\n*** HCV-HCC: active or resolved HCV infection as evidenced by detectable HCV ribonucleic acid (RNA) or antibody. Patients who have failed HCV therapy as evidenced by detectable HCV RNA will be eligible. Subjects with chronic infection by HCV who are treated (successfully or treatment failure) or untreated are allowed on study. In addition, subjects with successful HCV treatment are allowed as long as there are >= 4 weeks between completion of HCV therapy and start of study drug. Successful HCV treatment definition: SVR12 Patients with successfully treated hepatitis C virus (HCV) are eligible if HCV viral load is undetectable Viral status (hepatitis B and C) must be known. All hepatitis B virus (HBV)-positive patients must be on antiviral medication for viral suppression.\r\n* Patients with concomitant HBV infection must have a confirmed diagnosis of HBV characterized by the presence of hepatitis B core antibodies, and be sufficiently suppressed with active antiviral treatment (per local institutional practice) prior to enrollment to ensure adequate viral suppression (HBV deoxyribonucleic acid [DNA] < 2000 IU/mL).\r\n* Patients with concomitant hepatitis C virus (HCV) infection must have confirmed diagnosis of HCV characterized by the presence of detectable HCV ribonucleic acid (RNA or anti-HCV antibody upon enrollment. Any known clinically significant active infection including bacterial, fungal or viral including hepatitis B (HBV), hepatitis C (HCV) or any underlying disease or in the recent past which could compromise enrollment and safety of the patient. Has dual infection with HBV/HCV or other hepatitis combinations at study entry FOR ALL PHASES (Ib AND II): Hepatitis B (HBV) or hepatitis C (HCV); all patients must be screened for HBV and HCV up to 28 days prior to study drug start using the routine hepatitis virus laboratorial panel Has dual infection with HBV/HCV or other hepatitis combinations at study entry Ruxolitinib\r\n* Chronic active hepatitis C (HCV) Note - Subjects with a history of hepatitis B or C with normal ALT and undetectable HBV DNA or HCV RNA are eligible for this study For HCC with prior hepatitis B and/or C infection, HBV and/or HCV viral load by real-time polymerase chain reaction (qPCR) must be undetectable, and they must not have had recent treatment within 12 weeks for HBV or HCV with certain antiviral medications. Patients with known active hepatitis C virus (HCV) infection; patients with a history of HCV infection who received definitive therapy and has an undetectable viral load by PCR would be eligible Active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection, currently requiring medical intervention, per institutional protocol. Testing for HBV or HCV status is not necessary unless clinically indicated or the patient has a history of HBV or HCV infection requiring treatment with currently an unknown status. History of treated hepatitis is not exclusionary Patients with chronic HCV infection with less than 4 weeks between completion of HCV therapy and start of study drug. Note: patients with chronic infection with HCV who are untreated or noncuratively treated HCV are allowed on study. Active hepatitis B (HBV) or C (HCV) infection. HIV infection, active hepatitis B or C infection. History of treated hepatitis B or C is permitted if the viral load is undetectable. HCC patients with controlled or chronic stable HBV infection will be eligible for screening. HCC patients with HBV infections who are not on anti-HBV treatment will be excluded from the study. HCC subjects with HCV infections will be allowed for screening; however, subjects with both HBV and HCV infections will be excluded for screening Known active HIV, HBV, or HCV infection. Inactive hepatitis carrier status or low viral hepatitis titer on antivirals is allowed. Participants with chronic infection by Hepatitis C Virus (HCV) who are treated (successfully or treatment failure) or untreated are allowed on study. In addition, participants with successful HCV treatment are allowed as long as there are >4 weeks between achieving sustained viral response (SVR12) and start of study drug. Known chronic hepatitis B or C virus (HBV/HCV) infection, unless comorbidity in subjects with Hepatocellular carcinoma (HCC). For Cohort 1: has dual infection with HBV/Hepatitis C virus (HCV) or other hepatitis combinations at study entry Known hepatitis C virus (HCV) positive with chronic HCV or active viral infection with HCV hepatitis requiring anti-viral medication (at time of randomization). Known chronic hepatitis B or C (HBV/HCV) infection. Active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection per institutional protocol. Testing for HBV or HCV status is not necessary unless clinically indicated or the patient has a history of HBV or HCV infection Has known active Hepatitis B (HBV) or Hepatitis C (HCV) Any known active liver disease. For participants who are known carriers of HBV/HCV, active hepatitis B/C infection must be ruled out per local guidelines Known active hepatitis B or C. HBV and HCV tests are required prior to Day 1. Patients with chronic Hepatitis B and C infection. For patients with hepatocellular carcinoma (HCC), the presence of chronic HBV and HCV is NOT an exclusion. Patients must have a viral titer <50 IU/ml x 2 at a minimum of 2 weeks apart. Chronic hepatitis C virus (HCV) infection prior to study enrollment with screening laboratory results indicating HCV genotype 1 or 4 infection Acute or chronic hepatitis B (HBV) or hepatitis C (HCV) infection requiring concomitant treatment prohibited by this protocol (i.e.immunosuppressive therapy) Hepatitis C (HCV) virus with detectable viral load or immunological evidence of chronic active disease or receiving/requiring antiviral therapy. Subject has a known history of acute or chronic hepatitis B (HBV), HIV or hepatitis C (HCV) infection. Concomitant interferon therapy or therapies for active Hepatitis C virus (HCV) infection Acute viral hepatitis or history of chronic or acute HBV, HCV, HAV, HDV, HEV Uncontrolled infection, including active human immunodeficiency virus (HIV)-1, hepatitis B (hepatitis B virus [HBV]) and/or hepatitis C (hepatitis C virus [HCV]) infection (positive HBV or HCV viral load in the setting of positive HBV core antibody or surface antibody or HCV antibody); history of HBV or HCV is allowed if there is no uncontrolled viral infection; patients with any active viral infection are excluded Evidence of prior hepatitis B (HBV) or hepatitis C (HCV) Uncontrolled significant active infections, except Hepatitis B (HBV) or Hepatitis C (HCV) Patients with a known history of hepatitis C (HCV) will be eligible if they have an undetectable viral load; if the patient received treatment for HCV, then that treatment must have been completed at least three weeks prior to enrollment Has active hepatitis B (HBV) or hepatitis C (HCV). Active hepatitis B virus (HBV) or hepatitis C virus infection that requires treatment or at risk for HBV reactivation. Patients must not have known active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection prior to registration No known chronic active liver disease or evidence of acute or chronic hepatitis B virus (HBV) or hepatitis C (HCV) Hepatitis B virus (HBV) or hepatitis C virus (HCV) infection at screening Active hepatitis B virus (HBV) infection Active hepatitis B virus (HBV) or hepatitis C (HCV) infection; Known or suspected chronic active Epstein-Barr virus (EBV) infection, acute or chronic hepatitis C virus (HCV) infection Patients who have a clinically active hepatitis B or C virus infection are not eligible; NOTE: those with documented evidence of past exposure to hepatitis B virus (HBV) or hepatitis C virus (HCV) may enroll so long as the respective viral load is negative AND subject is willing/able to take appropriate antiviral prophylaxis to prevent reactivation Patients are not eligible who have clinically active hepatitis B (tested at screening) or known hepatitis A or C infections;\r\n* NOTE: Patients with chronic hepatitis C virus (HCV) or hepatitis B virus (HBV) infection may enroll if other laboratory criteria are met; those with HBV surface antigen positivity may enroll only if maintained on appropriate suppressive antiviral therapy, per treating investigator’s discretion, for the duration of enrollment in the trial Active hepatitis B virus (HBV) infection (chronic or acute) Active hepatitis C virus (HCV) infection Active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection Active infection with hepatitis C virus (HCV) Active infection with hepatitis B virus (HBV) or hepatitis C virus (HCV) Patients with a history of hepatitis B virus (HBV) are excluded Positive for acute or chronic Hepatitis B virus (HBV) infection Acute or chronic Hepatitis C virus (HCV) infection Patients must not have known active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection prior to registration Active hepatitis C virus (HCV) or hepatitis B virus (HBV) Known hepatitis B virus (HBV) or hepatitis C virus (HCV) infection; patients with documented cure from HCV infection will be included Has active co-infection with HBV and hepatitis D virus (HDV) If positive for hepatitis B virus (HBV) exposure or prior infection, can continue to participate in trial with prophylactic entecavir (for HBV); if positive for hepatitis C virus (HCV) exposure or active infection, can participate in trial with monitoring for liver function abnormalities Antiviral therapy for hepatitis C virus (HCV) and hepatitis B virus (HBV) is allowed, but patient should not be on interferon. Hepatitis B virus (HBV) positive participants will be excluded Patients with active hepatic disease, liver cirrhosis, or known hepatitis B virus (HBV)/hepatitis C virus (HCV) infection Known history of hepatitis B virus (HBV) or hepatitis C virus (HCV) infection Participant is known to be positive for hepatitis B virus (HBV), or hepatitis C virus (HCV) infection. Inactive hepatitis carrier status or low viral hepatitis titer on antivirals (non-exclusionary medications) are not excluded. Has known active hepatitis B without hepatitis B virus (HBV) treatment (HBV infection with ongoing HBV treatment is allowed); has persistent chronic hepatitis C infection (successfully treated hepatitis C virus [HCV] infection is allowed) Known history of hepatitis B virus (HBV) or hepatitis C (HCV) infection Evidence of uncontrolled viral infection including Cytomegalovirus (CMV), Epstein-Barr Virus (EBV), Human Herpes Virus-6 (HHV-6), Hepatitis Virus (HBV), or Hepatitis C Virus (HCV) based on assessment by the treating physician. mCRPC EXPANSION COHORT: Hepatitis B virus (HBV) -or hepatitis C virus (HCV)-positive patients are ineligible Patients who test positive for hepatitis B virus (HBV) or hepatitis C virus (HCV) For non-HCC, there must not be acute or chronic hepatitis B virus (HBV) or hepatitis C virus (HCV) infection. PHASE I STUDY ELIGIBILITY CRITERIA: \r\nHepatitis B virus (HBV)-or hepatitis C virus (HCV)-positive patients are ineligible Known, active infection with hepatitis B virus (HBV) or hepatitis C virus (HCV) Known, active infection with hepatitis B virus (HBV) or hepatitis C virus (HCV) Active Epstein-Barr virus (EBV), hepatitis B virus (HBV) or hepatitis C virus (HCV) Active hepatitis B virus (HBV) infection Known history of hepatitis B virus (HBV) or hepatitis C virus (HCV) infection Known hepatitis B virus (HBV) or hepatitis C virus (HBV) infection Patients with known active hepatitis B virus (HBV) and hepatitis C virus (HCV) infections Patients with evidence of hepatitis C virus (HCV) or hepatitis B virus (HBV) infection must have no clinical evidence of cirrhosis Hepatitis B virus (HBV) or untreated systemic infection Has controlled infection by Hepatitis B Virus (HBV). Active hepatitis B virus (HBV) or hepatitis C virus infection that requires treatment or at risk for HBV reactivation. Subjects whose immune status is unknown or uncertain must have results confirming immune status before enrollment. Patients must not have known active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection prior to registration Patients must NOT have liver disease such as cirrhosis or severe hepatic impairment (Child-Pugh Class C); NOTE: A detailed assessment of hepatitis B/C medical history and risk factors must be done at screening for all patients; hepatitis B virus (HBV) and hepatitis C virus (HCV) testing are required at screening for all patients with a positive medical history based on risk factors and/or confirmation of prior HBV/HCV infection Positive hepatitis B virus (HBV) and/or hepatitis C virus (HCV) infection at screening HIV, hepatitis B virus (HBV), or hepatitis C virus (HCV) infection Known acute or chronic-active infection with hepatitis B virus (HBV) or hepatitis C virus (HCV) Has untreated active Hepatitis B virus (HBV) Known HIV infection, or hepatitis B virus (HBV) or hepatitis C virus (HCV) viremia or at risk for HBV reactivation Positive test results for chronic hepatitis B infection and hepatitis C virus (HCV) Have active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection requiring treatment or have an active infection that is clinically serious in the investigator's opinion. Patients who test positive for hepatitis B virus (HBV) or hepatitis C virus (HCV) For gastric/GEJ and NSCLC participants, has chronic hepatitis B or hepatitis C infection. (For HCC participants, those with chronic hepatitis B virus [HBV] infection with a negative HBV deoxyribonucleic acid [DNA] test and who are on antiviral therapy, and those with chronic hepatitis C virus [HCV] infection are eligible) Subjects with known active hepatitis B virus (HBV) and hepatitis C virus (HCV) infection Patient has acute viral hepatitis or a history of chronic or active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection Documentation on hepatitis B virus (HBV) and hepatitis C virus (HCV) serology is required Active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection Patients must not have an active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection Patients who test positive for hepatitis B virus (HBV) or hepatitis C virus (HCV) Patients with a known history of infection with hepatitis B virus (HBV) or hepatitis C virus (HCV) Liver disease: Evidence of hepatitis B virus (HBV) or hepatitis C virus (HCV) infection or risk of reactivation. Positive hepatitis B virus (HBV) and/or hepatitis C virus (HCV) infection at screening Positive serology test for hepatitis B virus (HBV), hepatitis C virus (HCV), or active tuberculosis Known history of, or active hepatitis B virus (HBV), hepatitis C virus (HCV) or active tuberculosis Subjects must meet the protocol-defined criteria for both hepatitis B virus (HBV) and hepatitis C virus (HCV) status Known infection with hepatitis B virus (HBV) and hepatitis C virus (HCV); testing may have been done up to 3 months prior to treatment Have negative serology for hepatitis B virus (HBV) and hepatitis C virus (HCV) Positive test results for chronic hepatitis B virus (HBV) infection or for hepatitis C virus (HCV) antibody Patients with active or chronic hepatitis C virus (HCV) Patients must be on antiviral therapy per the local standard of care if active or occult hepatitis B (hepatitis B virus [HBV]) infection; patients with active hepatitis C (hepatitis C virus [HCV]) may not be antiviral therapy Patient is known to have a history of active or chronic infection with hepatitis C virus (HCV) or hepatitis B virus (HBV) as determined by serologic tests Ongoing hepatitis B virus (HBV) infection Active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection that requires treatment or at risk for HBV reactivation. Known hepatitis A virus (HAV), hepatitis B virus (HBV) or hepatitis C virus (HCV) positivity with evidence of ongoing infection. Patients with known active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection are not eligible NOTE: Patients with chronic hepatitis C virus (HCV) or hepatitis B virus (HBV) infection may enroll if other laboratory criteria are met; those with HBV surface antigen positivity may enroll only if maintained on appropriate suppressive antiviral therapy for the duration of enrollment in the trial Active chronic hepatitis B virus (HBV) or hepatitis C virus (HCV) infection, active HIV, or cytomegalovirus (CMV) infection. Known, active infection with hepatitis B virus (HBV) or hepatitis C virus (HCV) Patients must not have known active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection prior to registration; patients who have completed curative therapy for HCV are eligible; patients with known human immunodeficiency virus (HIV) infection are eligible if they meet each of the following 3 criteria:\r\n* CD4 counts >= 350 mm^3\r\n* Serum HIV viral load of < 25,000 IU/ml and\r\n* Treated on a stable antiretroviral regimen Patients with known active infections with human immunodeficiency virus (HIV), hepatitis A virus (HAV), hepatitis B (HBV), and hepatitis C virus (HCV) infections will not be considered for this trial; HIV+ patients on combination antiretroviral therapy are ineligible; testing for HIV or hepatitis is not required Subject has an active infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV), or human T-lymphotropic virus (HTLV) as defined below: Patients with active Hepatitis B virus (HBV), Hepatitis C virus (HCV) or Human immune deficiency virus (HIV) infection Subject with known human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection or is known to be a carrier of hepatitis B or C. Human immunodeficiency virus (HIV)-positive patients on combination antiretroviral therapy are ineligible; similarly, patients with chronic or acute hepatitis C virus (HCV) or hepatitis B virus (HBV) infection are also ineligible; prior hepatitis infection that has been treated with highly effective therapy with no evidence of residual infection and with normal liver function (ALT, AST, total and direct bilirubin =< ULN) is allowed Positive human immunodeficiency virus, hepatitis B virus, and hepatitis C virus infection. Is test positive for hepatitis C virus (HCV), hepatitis B virus (HBV) or human immunodeficiency virus (HIV) antibody. No known hepatitis B virus (not due to immunization), hepatitis C virus, human immunodeficiency virus-I and -II positive status. Immunocompromised patients (other than that related to the use of corticosteroids) including patients with a known history of human immunodeficiency virus (HIV) or active infection with hepatitis B virus (HBV) or hepatitis C virus (HCV). Negative virology/serology for human immunodeficiency virus (HIV)-1, HIV-2, hepatitis B surface antigen (HBsAg), and hepatitis C virus (HCV) DNA Participant has a known history of human immunodeficiency virus (HIV) infection or hepatitis C virus (HCV), or requires treatment with protease inhibitors (testing not mandatory). Known history of human immunodeficiency virus (HIV), active infection with hepatitis B virus (HBV), and/or hepatitis C virus (HCV) Known history of human immunodeficiency virus (HIV), active infection with hepatitis B virus (HBV), and/or hepatitis C virus (HCV) Have a serious concomitant systemic disorder that would compromise the participant's ability to adhere to the protocol, including active or chronic infection with human immunodeficiency virus (HIV), active hepatitis B virus (HBV), active hepatitis C virus (HCV), active autoimmune disorders, or prior documented severe autoimmune or inflammatory disorders requiring immunosuppressive treatment. Human immunodeficiency virus (HIV) or hepatitis B virus (HBV) or hepatitis C virus (HCV) infection Positive human immunodeficiency virus (HIV) test, active hepatitis B virus (HBV) infection, active hepatitis C virus (HCV) infection or active tuberculosis Known history of human immunodeficiency virus (HIV) or active hepatitis C virus (HCV) or hepatitis B virus (HBV). Known human immunodeficiency virus (HIV) or acquired immunodeficiency syndrome (AIDS)-related illness, or active hepatitis B virus (HBV) and hepatitis C virus (HCV) Subjects with a known history of human immunodeficiency virus 1 and 2, human T lymphotropic virus 1, hepatitis B virus, or active hepatitis C virus. Positive human immunodeficiency virus, hepatitis B virus, and hepatitis C virus infection. Known human immunodeficiency virus (HIV) or known hepatitis C virus (HCV) infection or active hepatitis B. Active infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) Known infection of, or who test positive for, human immunodeficiency virus, hepatitis B virus or hepatitis C virus. Known infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) Patients must not have known active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection prior to trial registration. Patients who have completed curative therapy for HCV are eligible. Patients with known human immunodeficiency virus (HIV) infection are eligible if they meet each of the following 3 criteria:\r\n* CD4 counts >= 350 mm^3\r\n* Serum HIV viral load of < 25,000 IU/ml and\r\n* Treated on a stable antiretroviral regimen. Known history of human immunodeficiency virus (HIV) or active infection with hepatitis C virus (HCV) or hepatitis B virus (HBV); patients with HBV and/or HCV sero-positivity only will be eligible, if nucleic acid amplification testing (NAT) is negative Known history of human immunodeficiency virus (HIV) or known active infection with hepatitis B virus (HBV) or hepatitis C virus (HCV). Presence of a known active acute or chronic infection, including human immunodeficiency virus (HIV, as determined by enzyme-linked immunosorbent assay [ELISA] and confirmed by western blot) and hepatitis B and hepatitis C virus (HBV/HCV, as determined by hepatitis B surface antigen [HBsAg] and hepatitis C serology) Known active hepatitis B (HBV) or hepatitis C (HCV) infection or known human immunodeficiency virus (HIV) infection. Human immunodeficiency virus (HIV), hepatitis C virus (HCV), hepatitis B virus (HBV) positive patients on antiviral drugs are excluded due to the absence of previous experience with concurrent use of antiviral medications and the investigational drug product to be evaluated in the current study and possible for adverse pharmacokinetic and/or pharmacodynamic interactions Known infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV). Human immunodeficiency virus (HIV) or active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection; HIV positive patients will be excluded due to a theoretical concern that the degree of immune suppression associated with the treatment may result in progression of HIV infection As judged by the Investigator, has any evidence of severe or uncontrolled diseases such as active bleeding diatheses, or has an active viral infection of human immunodeficiency virus (HIV), human papilloma virus (HPV), hepatitis B virus (HBV), and/or hepatitis C virus (HCV) Known human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV) infection Known history of human immunodeficiency virus (HIV) or known active infection with hepatitis B virus (HBV) or hepatitis C virus (HCV). Patients with clinically evident human immunodeficiency virus (HIV), hepatitis B virus (HBV), hepatitis C virus (HCV), or Epstein-Barr virus (EBV) infection are excluded Patients known to have acute or chronic active hepatitis B virus (HBV), hepatitis C virus (HCV) or human immunodeficiency virus (HIV). Known human immunodeficiency virus (HIV), hepatitis C virus (HCV) or evidence of active hepatitis B virus (HBV) Known infection with human immunodeficiency virus (HIV) or chronic infection with hepatitis B virus (hepatitis B surface antigen [HBsAg] positive) or hepatitis C virus (anti-HCV positive). Known history of human immunodeficiency virus (HIV) infection or chronic hepatitis B or C; NOTE: HIV, hepatitis B virus (HBV) or hepatitis C virus (HCV) testing is not required As judged by the investigator, has any evidence of severe or uncontrolled systemic diseases such as active bleeding diatheses, is positive for human immunodeficiency virus (HIV), or has active hepatitis B virus (HBV) and/or hepatitis C virus (HCV) Known seropositivity for, or active viral infection with, human immunodeficiency virus (HIV), hepatitis B virus (HBV) (unless due to vaccination), or hepatitis C virus (HCV); HIV-positive patients on combination antiretroviral therapy are ineligible Known positive for human immunodeficiency virus (HIV), hepatitis B virus surface antigen (HBsAg), or hepatitis C virus (HCV) Human immunodeficiency virus (HIV) or active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection due to risk of progression while receiving immunosuppressive chemotherapy Human immunodeficiency virus (HIV) or active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection; HIV positive patients will be excluded Have a serious concomitant systemic disorder including human immunodeficiency virus (HIV), active hepatitis B virus (HBV), active hepatitis C virus (HCV), active autoimmune disorder or disease requiring high dose of steroids. Known active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV) Has a known human immunodeficiency virus (HIV), hepatitis B (HBV), or hepatitis C (HCV) infection Known positive for human immunodeficiency virus (HIV), hepatitis B virus surface antigen (HBsAg) or hepatitis C virus (HCV) Patients with a known active infection, e.g., hepatitis B virus or hepatitis C virus; human immunodeficiency virus (HIV)-positive patients who are otherwise well and who do not have evidence of significant immune compromise are eligible Known positive for human immunodeficiency virus (HIV), hepatitis B virus surface antigen (HBsAg) or hepatitis C virus (HCV) Known positive for human immunodeficiency virus (HIV); active hepatitis B (HBV) or hepatitis C (HCV) infection Known sero-positive for active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are sero-positive because of hepatitis B virus vaccine are eligible Has a known human immunodeficiency virus (HIV), hepatitis B (HBV), or hepatitis C (HCV) infection Patients with history of human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV) Known human immunodeficiency virus (HIV) infection or chronic or acute hepatitis B or C\r\n* Note: patients who have a history of hepatitis B virus (HBV) and hepatitis C virus (HCV) infection are eligible, however, they must receive prophylactic antiviral therapy for 1-2 weeks prior to receiving study drug Known sero-positive for active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are sero-positive because of hepatitis B virus vaccine are eligible Known active human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection. Inactive hepatitis carrier status or low viral hepatitis titer on antivirals is allowed. Have an ongoing or active infection, including but not limited to, the requirement for intravenous (IV) antibiotics, or a known history of human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV). Testing is not required in the absence of history. Known history of human immunodeficiency virus (HIV) or known active infection with hepatitis B virus (HBV) or hepatitis C virus (HCV). Known positive for human immunodeficiency virus (HIV), hepatitis B virus surface antigen (HBsAg), or hepatitis C virus (HCV) Known history of Human Immunodeficiency Virus (HIV) or active infection with Hepatitis C Virus (HCV) or Hepatitis B Virus (HBV) or any uncontrolled active systemic infection. Known positive for human immunodeficiency virus (HIV), hepatitis B virus surface antigen (HBsAg) or hepatitis C virus (HCV) Known human immunodeficiency virus (HIV), hepatitis C virus (HCV) or evidence of active hepatitis B virus (HBV) Positive human immunodeficiency virus (HIV) test, active tuberculosis, active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection Patients with history of human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV) due to potentially increased risk of mithramycin toxicity in this population Human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) seropositivity Patient has a current active infectious disease or known positive serology for human immunodeficiency virus (HIV), hepatitis C virus (HCV), hepatitis B virus (HBV), or hepatitis A virus (HAV) No active or chronic infection with human immunodeficiency virus (HIV), hepatitis B, or hepatitis C; patients must have negative testing for HIV, hepatitis B virus (HBV), hepatitis C virus (HCV) within 4 weeks prior to randomization Has a known human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection Active human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV) infection Patient must not be known to be human immunodeficiency virus (HIV)-positive, hepatitis B-positive, or hepatitis C-positive (with the exception of chronic or cleared hepatitis B virus [HBV] or hepatitis C virus [HCV] infection, which will be allowed) Has a known Human Immunodeficiency Virus (HIV), or a known, active Hepatitis B (HBV), or a known, active Hepatitis C (HCV) infection. Known active hepatitis B virus (HBV) or hepatitis C virus (HCV) infections or positive human immunodeficiency virus (HIV) antibody results. Patients with sustained virologic response to HCV treatment or immunity to HBV from prior infection without cirrhosis may be included. Patients with known human immunodeficiency virus (HIV) or active infection with hepatitis C virus or hepatitis B virus (testing is not mandatory) Known history of human immunodeficiency virus (HIV) infection, or seropositive results consistent with active hepatitis B virus (HBV) or active hepatitis C virus (HCV) infection. Significant life-threatening extra-hepatic disease, including patients who are on dialysis, have unresolved diarrhea, have serious unresolved infections including patients who are known to be human immunodeficiency virus (HIV) positive or have acute hepatitis B virus (HBV) or hepatitis C virus (HCV) Known Human Immunodeficiency Virus (HIV) or Hepatitis C (HCV) infection, or evidence of active Hepatitis B Virus (HBV) infection Known Human Immunodeficiency Virus (HIV) or Hepatitis C (HCV) infection, or evidence of active Hepatitis B Virus (HBV) infection. Active uncontrolled infection. Active hepatitis B or C virus (HBV or HCV), or human immunodeficiency virus (HIV)infection. Patients with known history of human immunodeficiency virus (HIV), hepatitis B virus (HBV) and hepatitis C virus (HCV) infection Uncontrolled infectious diseases - requires negative tests for clinically suspected human immunodeficiency virus (HIV), hepatitis B virus (HBV) and hepatitis C virus (HCV). Active human immunodeficiency virus (HIV), Hepatitis B Virus (HBV) or hepatitis C virus (HCV) infections at the time of screening. Subjects with laboratory evidence of HCV clearance may be enrolled. Known severe and/or uncontrolled medical disorder that would impair ability to receive study treatment (i.e., uncontrolled diabetes, chronic renal disease, chronic pulmonary disease, human immunodeficiency virus [HIV], hepatitis B virus [HBV], hepatitis C virus [HCV], or active infection) Negative screen for human immunodeficiency virus (HIV), hepatitis B virus (HBV) antigen, and hepatitis C virus (HCV); if testing was done within the past three months, there is no need to repeat testing, as long as documentation of results is provided to the study site; subjects must receive counseling and sign a separate informed consent for HIV testing Human Immunodeficiency Virus (HIV), or active Hepatitis C (HCV) virus. Escalation: active Hepatitis B (HBV); Expansion: Patients with Chronic HBV currently on medication will not be excluded. Presence of a known active acute or chronic infection, including human immunodeficiency virus (HIV, as determined by enzyme-linked immunosorbent assay [ELISA] and confirmed by western blot) and hepatitis B and hepatitis C virus (HBV/HCV, as determined by hepatitis B surface antigen [HBsAg] and hepatitis C serology) Known human immunodeficiency virus (HIV), hepatitis C virus (HCV) or evidence of active hepatitis B virus (HBV) Active infection with human immunodeficiency virus (HIV), hepatitis B Virus (HBV), or hepatitis C Virus (HCV) Subjects who have a history of human immunodeficiency virus (HIV) infection or subjects who have an active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection requiring treatment. Known positive test for human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) Known active human immunodeficiency virus (HIV), hepatitis C virus (HCV) or hepatitis B virus (HBV) Patients with clinically evident Human Immunodeficiency Virus (HIV), Hepatitis B Virus (HBV), Hepatitis C virus (HCV), or Epstein-Barr virus (EBV) infection are excluded. DONOR: No positive testing for viral infection (hepatitis B surface antigen [HbsAg], human immunodeficiency virus (HIV), hepatitis C virus [HCV]) Known sero-positive for active or past viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are sero-positive because of hepatitis B virus vaccine are eligible Known history of human immunodeficiency virus (HIV) or active with hepatitis C virus (HCV) or hepatitis B virus (HBV). Known history of human immunodeficiency virus (HIV) or active infection with hepatitis C virus (HCV) or hepatitis B virus (HBV) or any uncontrolled active systemic infection. Participants with known infection with human immunodeficiency virus (HIV), hepatitis B virus, or hepatitis C virus Is known to have human immunodeficiency virus (HIV) or has active hepatitis C virus (HCV), or active hepatitis B virus (HBV) Known history of human immunodeficiency virus (HIV) or active infection with hepatitis C virus (HCV) or hepatitis B virus (HBV) or any uncontrolled active systemic infection. Subjects with known history of human immunodeficiency virus (HIV) or active infection with hepatitis C virus (HCV) or hepatitis B virus (HBV) Positive human immunodeficiency virus (HIV), hepatitis B virus (HBV) and/or hepatitis C virus (HCV) infection Infection with human immunodeficiency virus (HIV) or chronic infection with hepatitis B virus (HBV) or hepatitis C virus (HCV). Subjects with known history of human immunodeficiency virus (HIV) or active infection with hepatitis C virus (HCV) or hepatitis B virus (HBV), because eltrombopag is hepatically cleared, and underlying hepatic impairment may lead to an increased risk of hepatotoxicity. Eltrombopag has not been evaluated with combination antiretroviral regimens. Active human immunodeficiency virus 1 (HIV-1), hepatitis B virus (HBV) and/or hepatitis C virus (HCV) infection Clinically relevant active infection including active hepatitis B or C or human immunodeficiency virus (HBV, HCV, or HIV) or any other concurrent disease Presence of active hepatitis C virus (HCV) or hepatitis B virus (HBV) infection, history of human immunodeficiency virus (HIV), or other uncontrolled systemic infection Patients with a history of human immunodeficiency virus (HIV) infection; active viral infection with hepatitis B virus (HBV) and hepatitis C virus (HCV) Known history of human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) Positive for human immunodeficiency virus (HIV), hepatitis B virus surface antigen (HBsAg), hepatitis C virus (HCV) or other viral hepatitis or cirrhosis from any cause History of human immunodeficiency virus (HIV) or an active and uncontrolled infection with hepatitis C virus (HCV) or hepatitis B virus (HBV) Known active hepatitis B (HBV), hepatitis C (HCV) or human immunodeficiency virus (HIV) infections; Note: pretesting is not required Known positive for human immunodeficiency virus (HIV) or infectious hepatitis, type B (HBV) or C (HCV) or active hepatitis Known Human Immunodeficiency Virus (HIV), Hepatitis B Virus (HBV) and/or Hepatitis C Virus (HCV) infection. Known Human Immunodeficiency Virus (HIV), active Hepatitis B Virus (HBV), and/or active Hepatitis C Virus (HCV) infection. Known active Human Immunodeficiency Virus (HIV), Hepatitis B Virus (HBV) or Hepatitis C Virus (HCV) infections. Subjects with laboratory evidence of HBV clearance may be enrolled Have a serious concomitant systemic disorder including human immunodeficiency virus (HIV), active hepatitis B virus (HBV), active HCV, active autoimmune disorder or disease requiring high dose of steroids Active infection requiring systemic therapy, including known human immunodeficiency virus (HIV), acquired immunodeficiency syndrome-related illness, or active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection. Pts with known human immunodeficiency virus (HIV) or hepatitis C virus (HCV) disease (routine testing is not needed if not clinical indicated) Patients with known or suspected infection with human immunodeficiency virus (HIV), hepatitis C virus (HCV), hepatitis B virus (HBV) or other infectious hepatitis Ongoing or active infection including known history of human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C (HCV); testing for these viruses is not required in the absence of a history of infection Negative screen for human immunodeficiency virus (HIV), hepatitis B virus (HBV) antigen, and hepatitis C virus (HCV); if testing was performed during the previous 3 months, there is no need to repeat testing, as long as documentation of results is provided to the study site; subjects must receive counseling and sign a separate informed consent form for HIV testing Negative screen for human immunodeficiency virus (HIV), hepatitis B virus (HBV) antigen, and hepatitis C virus (HCV); if testing was performed during the previous 3 months, there is no need to repeat testing, as long as documentation of results is provided to the study site; subjects must receive counseling and sign a separate informed consent form for HIV testing Infection with Human immunodeficiency virus (HIV) or hepatitis B virus, hepatitis C\n virus Known sero-positive for active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are sero-positive because of hepatitis B virus vaccine are eligible Hepatitis B virus (HBV), hepatitis C virus (HCV), or human immunodeficiency virus (HIV)-positive participants with active infection Known infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients with prior exposure to hepatitis, but no evidence of active or chronic infection, may be eligible Known human immunodeficiency virus infection, or hepatitis B virus (HBV) viremia or hepatitis C virus (HCV) viremia; screening for the study does not require assessment for these infections if not already known; any other condition that, in the opinion of the investigator, may compromise the safety, compliance of the patient, or would preclude the patient from successful completion of the study Known history of infection with human immunodeficiency virus (HIV) or chronic infection with hepatitis B virus (HBsAg positive) or hepatitis C virus (anti-HCV positive) A history of known Human Immunodeficiency Virus (HIV), Hepatitis B Virus, or Hepatitis C Virus infection. A history of known Human Immunodeficiency Virus (HIV), Hepatitis B Virus (HBV), or Hepatitis C Virus (HCV) infection Concomitant diseases/conditions as unstable angina, myocardial infarction, symptomatic congestive heart failure or asymptomatic with left ventricular ejection fraction (LVEF) ? 50%, dyspnea, infection by human immunodeficiency virus (HIV), active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection, active uncontrolled infection, pleural or pericardial effusions, myopathy, limitation of the patient's ability to comply with the treatment or to follow-up the protocol, any other major illness Patients with a known history of human immunodeficiency virus (HIV) or active infection with hepatitis B virus (HBV) or hepatitis C virus (HCV). Patients with known active human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection. Current known active infection with human immunodeficiency virus (HIV), hepatitis B, and/or hepatitis C virus; for patients who are known carriers of hepatitis B virus (HBV), active hepatitis B infection must be ruled out based on negative serologic testing and/or determination of HBV deoxyribonucleic acid (DNA) viral load per local guidelines Known history of hepatitis B virus (HBV), hepatitis C virus (HCV), or active tuberculosis. Known history of human immunodeficiency virus (HIV) type 1/2 or other immunodeficiency disease. Patients with a history of human immunodeficiency virus (HIV) or active infection with hepatitis B virus (HBV) or hepatitis C virus (HCV). A history of known Human Immunodeficiency Virus (HIV), Hepatitis B Virus (HBV), or Hepatitis C Virus (HCV) infection. Has a known human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection Active human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV) infections at the time of screening. Seronegative for human immunodeficiency virus (HIV), hepatitis C virus (HCV) and active hepatitis B virus (HBV) (surface antigen negative) within 2 months of registration and no history of disseminated cutaneous human papillomavirus (HPV) related disease Seronegative for human immunodeficiency virus (HIV), hepatitis C virus (HCV) and active hepatitis B virus (HBV) (surface antigen negative) within 2 months of registration Seronegative for human immunodeficiency virus (HIV), hepatitis C virus (HCV) and active hepatitis B virus (HBV) (surface antigen negative) within 2 months of registration Human Immunodeficiency Virus, Hepatitis B Virus or Hepatitis C Virus infection. Active/chronic human immunodeficiency virus (HIV), hepatitis C virus (HCV), or hepatitis B virus (HBV) infection Known infection with human immunodeficiency virus (HIV), hepatitis C virus (HCV), or hepatitis B virus (HBV); this information will be obtained verbally from the patient Known Human Immunodeficiency Virus (HIV) or Hepatitis C (HCV) infection, or evidence of active Hepatitis B Virus (HBV) infection Known infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV). Patients who have a known human immunodeficiency virus (HIV), hepatitis C virus (HCV) or evidence of active hepatitis B virus (HBV) Known human immunodeficiency virus (HIV), hepatitis C virus (HCV) or evidence of active hepatitis B virus (HBV) Known human immunodeficiency virus (HIV), active Hepatitis B (HBV) or Hepatitis C (HCV) infection Have a serious concomitant systemic disorder (for example, active infection including human immunodeficiency virus [HIV], hepatitis C virus [HCV], hepatitis B virus [HBV] [ie, positive hepatitis B surface antigen [+HBsAg]]), or an autoimmune disease. Known history of human immunodeficiency virus (HIV) or active infection with hepatitis C virus (HCV) or hepatitis B virus (HBV). Known human immunodeficiency virus (HIV), recent hepatitis B virus (HBV), hepatitis C virus (HCV) Chronic or active hepatitis B or C, requiring antiviral therapy Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Patients with hepatitis B infection must be on appropriate antiviral therapy Chronic or current infectious disease requiring systemic antibiotics, antifungal, or antiviral treatment such as, but not limited to, chronic renal infection, chronic chest infection with bronchiectasis, tuberculosis and active hepatitis C Chronic or ongoing active infectious disease requiring systemic treatment such as, but not limited to, chronic renal infection, chronic chest infection with bronchiectasis, tuberculosis and active hepatitis C Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Chronic or current infectious disease requiring systemic antibiotics, antifungal, or antiviral treatment such as, but not limited to, chronic renal infection, chronic chest infection with bronchiectasis, tuberculosis and active Hepatitis C Chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy. Patients with hepatitis B infection must be on appropriate antiviral therapy Chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Chronic or active hepatitis B or C if not controlled by antiviral therapy Known history of human immunodeficiency virus or infection with hepatitis requiring antiviral therapy Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Known history of human immunodeficiency virus (HIV) infection or chronic or active hepatitis B or hepatitis C requiring treatment with antiviral therapy. Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy. Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Patients with active hepatitis B or C, or chronic hepatitis B or C requiring treatment with antiviral therapy Chronic or current infectious disease requiring systemic antibiotics, antifungal, or antiviral treatment such as, but not limited to, chronic renal infection, chronic chest infection with bronchiectasis, tuberculosis and active hepatitis C Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Chronic or current infectious disease requiring systemic antibiotics, antifungal, or antiviral treatment such as, but not limited to, chronic renal infection, chronic chest infection with bronchiectasis, tuberculosis and active hepatitis C Chronic or current infectious disease requiring systemic antibiotics, antifungal, or antiviral treatment such as, but not limited to, chronic renal infection, chronic chest infection with bronchiectasis, tuberculosis and active hepatitis C Chronic or current infectious disease requiring systemic antibiotics, antifungal, or antiviral treatment as such, but not limited to, chronic renal infection, chronic chest infection with bronchiectasis, tuberculosis and active hepatitis C Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy. Subjects with known active hepatitis B or C, or chronic hepatitis B or C requiring treatment with antiviral therapy. Chronic or current infectious disease requiring systemic antibiotics, antifungal (excluding antifungals given for nail-beds infections), or antiviral treatment such as, but not limited to, chronic renal infection, chronic chest infection with bronchiectasis, tuberculosis and active hepatitis C Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy; baseline testing is not required Have either active or chronic hepatitis B or C requiring treatment with antiviral therapy. Known HIV-positive individuals on combination antiretroviral therapy, patients with known active hepatitis B or C, or chronic hepatitis B or C requiring treatment with antiviral therapy Chronic or active hepatitis B or C, requiring antiviral therapy Active Hepatitis B infection in the absence of adequate antiviral therapy Chronic or active hepatitis B or C, requiring antiviral therapy Chronic or current infectious disease requiring systemic antibiotics, antifungal, or antiviral treatment such as, but not limited to, chronic renal infection, chronic chest infection with bronchiectasis, tuberculosis and active hepatitis C Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Chronic or current active infectious disease requiring systemic antibiotics, antifungal, or antiviral treatment such as, but not limited to, chronic renal infection, chronic chest infection with bronchiectasis, tuberculosis, active Hepatitis C, and known Human Immunodeficiency Virus (HIV) disease. All HIV-positive subjects are excluded from this study, regardless of whether they have an Acquired Immunodeficiency Syndrome (AIDS) defining disease and/or are on antiviral therapy. Chronic or currently active infectious disease requiring systemic antibiotics, antifungal, or antiviral treatment including, but not limited to: chronic renal infection, chronic chest infection with bronchiectasis, tuberculosis, active Hepatitis C, and known HIV disease. All Human Immunodeficient virus (HIV)-positive subjects are excluded from this study, regardless of whether they have an Acquired Immunodeficiency Syndrome (AIDS) defining disease and/or are on antiviral therapy. Chronic or current active infectious disease requiring systemic antibiotics, antifungal, or antiviral treatment such as, but not limited to, chronic renal infection, chronic chest infection with bronchiectasis, tuberculosis, active Hepatitis C, and known HIV disease. All HIV-positive patients are excluded from this study, regardless of whether they have an Acquired Immunodeficiency Syndrome (AIDS) defining disease and/or are on antiviral therapy. Prophylactic antiviral and/or antibacterial antibiotics to prevent recurrence of previous infections are permitted. Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Known history of human immunodeficiency virus (HIV) infection or current chronic or active hepatitis B or C infection requiring treatment with antiviral therapy Known seropositive for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are seropositive because of hepatitis B virus vaccine are eligible Known to be seropositive for human immunodeficiency virus (HIV), hepatitis C virus (HCV), or hepatitis B virus (HBV) Known seropositive for human immunodeficiency (HIV) virus, hepatitis B surface antigen (HbsAg), or antibody to hepatitis C virus (anti-HCV) Known seropositive for or positive viral load for human immunodeficiency virus (HIV) or positive viral loads for infectious hepatitis, type B (HBV) or C (HCV) Subject is seropositive for or has active viral infection with hepatitis B virus (HBV): Subject is known to be seropositive for, or have an active infection with, hepatitis C virus (HCV). Known seropositive for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are seropositive because of hepatitis B virus vaccine are eligible; patients who are positive for hepatitis B core antibody or hepatitis B surface antigen must have a negative polymerase chain reaction (PCR) result before enrollment; those who are PCR positive will be excluded Known seropositive for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are seropositive because of hepatitis B virus vaccine are eligible Human immunodeficiency virus (HIV)/hepatitis B virus (HBV)/hepatitis C virus (HCV) infection:\r\n* Seropositive for HIV antibody\r\n* Seropositive for hepatitis C or positive for hepatitis B surface antigen (HbsAG) Known seropositive and requiring anti-viral therapy for human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV) defined by polymerase chain reaction (PCR) Known active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are seropositive because of prior hepatitis B virus vaccination are eligible Known seropositive for or active viral infection with, human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV) Human immunodeficiency virus (HIV)/hepatitis B virus (HBV)/hepatitis C positive (HCV) infection:\r\n* Seropositive for HIV antibody; (patients with HIV are at increased risk of lethal infections when treated with marrow-suppressive therapy; appropriate studies will be undertaken in patients receiving combination antiretroviral therapy in the future should study results indicate effectiveness) \r\n* Seropositive for hepatitis C or positive for hepatitis B surface antigen (HbsAG) Subject with known history of human immunodeficiency virus (HIV) or if known seropositive for hepatitis C virus (HCV) or hepatitis B virus (HBV); HIV-positive patients on combination antiretroviral therapy are ineligible\r\n* NOTE: Patients seropositive for hepatitis B or C may be included if confirmed hepatitis C recombinant immunoblot assay (RIBA) negative or HCV ribonucleic acid (RNA) negative (qualitative) Known seropositive for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); subjects who are seropositive because of hepatitis B virus vaccine are eligible Active hepatitis B (hepatitis B virus [HBV]) or C (hepatitis C virus [HCV]) infection (negative serology required excluding those with are seropositive due to prior vaccination) and/or known history of human immunodeficiency virus (HIV) Known seropositivity for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV); patients who are seropositive because of hepatitis B vaccine are eligible Known seropositive for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are seropositive because of hepatitis B virus vaccine are eligible Known seropositive and requiring anti-viral therapy for human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV) Human immunodeficiency virus (HIV)/hepatitis B virus (HBV)/hepatitis C virus (HCV) infection: \r\n* Seropositive for HIV antibody \r\n* Seropositive for hepatitis C or positive for hepatitis B surface antigen (HbsAG) Known seropositive for, or history of, active Human Immunodeficiency Virus (HIV) Hepatitis B Virus (HBV), Hepatitis C Virus (HCV) Active autoimmune disease; other CNS autoimmune disease. Known seropositive for human immunodeficiency (HIV) virus, hepatitis B surface antigen (HbsAg), or antibody to hepatitis C virus (anti-HCV) with confirmatory testing and requiring anti-viral therapy. Seropositive for human immunodeficiency virus, hepatitis B, or hepatitis C Known seropositive for human immunodeficiency (HIV) virus, hepatitis B surface antigen (HbsAg), or antibody to hepatitis C virus (anti-HCV). Seropositive for or active viral infection with hepatitis B virus (HBV): Known seropositive for or active infection with hepatitis C virus (HCV) Known seropositive for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are seropositive because of hepatitis B vaccine are eligible Known active hepatitis, type A, B or C; patients who are seropositive because of hepatitis B virus vaccine are eligible Seropositive for human immunodeficiency virus (HIV), hepatitis B (HBV) or hepatitis C (HCV) per patient history Known seropositive for or active viral infection with hepatitis B virus (HBV) or/and human immunodeficiency virus (HIV). Seropositive or active viral infection with hepatitis B virus, human immunodeficiency virus or hepatitis C virus. Known seropositivity for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV); patients who are seropositive because of hepatitis B virus vaccine are eligible Known seropositive for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are seropositive because of hepatitis B virus vaccine are eligible Known seropositive for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are seropositive ( i.e. hepatitis B core antibody positive; quantitative deoxyribonucleic acid [DNA] negative) are eligible with appropriate prophylaxis Known seropositive for or active human immunodeficiency virus (HIV) infection or hepatitis B or C viral infection; patients who are seropositive because of hepatitis B virus vaccine are eligible Known seropositive and requiring anti-viral therapy for human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV) Known seropositive for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are seropositive because of hepatitis B virus vaccine are eligible; patients who are positive for hepatitis B core antibody or hepatitis B surface antigen must have a negative polymerase chain reaction (PCR) result before enrollment; those who are PCR positive will be excluded Known seropositive for human immunodeficiency virus (HIV) or hepatitis C virus (HCV). Known seropositivity for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV); patients who are seropositive because of hepatitis B virus vaccine are eligible; patients who are seropositive for HCV, but have a negative viral load are also eligible; documentation that the patients have completed a course of therapy for HCV is required and will be obtained Known seropositive and requiring anti-viral therapy for human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV) Individuals seropositive for hepatitis B or C are ineligible Known seropositive for or active viral infection with hepatitis B virus (HBV), hepatitis C virus (HCV), human immunodeficiency virus (HIV) Known seropositive for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV). Patients who are seropositive because of hepatitis B virus vaccine are eligible. Known seropositive for an active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV). Patients who are seropositive because of hepatitis B virus vaccine are eligible. Seropositive for human immunodeficiency virus (HIV), hepatitis B (HBV) or hepatitis C (HCV) per patient history Known seropositive for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are seropositive because of hepatitis b virus vaccine are eligible Subjects who are seropositive because of hepatitis B virus vaccine Known seropositive for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are seropositive because of hepatitis B virus vaccine are eligible Seropositive for human immunodeficiency virus (HIV) or hepatitis C virus (HCV). Known seropositive for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are seropositive because of hepatitis B virus vaccine are eligible Known seropositive for human immunodeficiency virus (HIV) or hepatitis C virus (HCV). Known history of human immunodeficiency virus (HIV) or seropositive test for hepatitis C virus or hepatitis B virus Seropositive for human immunodeficiency virus (HIV) or hepatitis C virus (HCV). Known seropositive, requiring anti-viral therapy, and with detectable viral load by polymerase chain reaction (PCR) for human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV) Known seropositive for or active viral infection with human immunodeficiency virus (HIV), hepatitis B virus (HBV) or hepatitis C virus (HCV); patients who are seropositive because of hepatitis B virus vaccine are eligible Known seropositive for human immunodeficiency (HIV) virus, hepatitis B surface antigen (HbsAg), or antibody to hepatitis C virus (anti-HCV). Active HBV or HCV infection. Negative for active HBV and HCV at screening Patients who have been infected with HBV or HCV including those with inactive disease. Known history of HBV or HCV infection. HBV and HVC co-infection, or HBV and Hep D co-infection Known active HCV, HBV, and/or HIV infection. Subject has active infection with HIV, HBV, HCV or HTLV Immune deficiency disease or known history of HIV, HBV, HCV Has dual active HBV infection (HBsAg [+] and/or detectable HBV deoxyribonucleic acid [DNA]) and HCV infection (anti-HCV Ab [+] and detectable HCV RNA) at study entry Patients who test positive for HBV or HCV HEALTHY SUBJECT: Be free of chronic illness, without known heart, lung, kidney, bleeding disorders, infectious disease (HIV, HBV or HCV infection) Subject has active infection with HIV, HBV, HCV or HTLV Known HIV, HBV, or HCV infection; Known history of HIV, HBV or HCV infection. Known history of HIV, HBV or HCV infection. Active HBV or HCV infections requiring therapy. Immune deficiency disease or known history of HIV, HBV, HCV Known history of HIV, HBV or HCV infection. Must not be HIV, HBV or HCV positive Diagnosis of HIV or evidence of active HBV or HCV Known HIV, HBV, or HCV infection. Dual active HBV infection (HBsAg (+) and /or detectable HBV DNA) and HCV infection (anti-HCV Ab(+) and detectable HCV RNA) at study entry. Has dual active HBV infection and HCV infection at study entry. Patients with HBV, HCV or HIV infection Active infection with HIV, HBV, HCV or HTLV as minimally defined below: Patients testing positive to one of the following viruses: HIV, HBV and HCV within the last 6 months; Known infection with HIV, HBV or HCV. Known active HIV, HBV or HCV infection Co-infection of HBV and HCV Active Infection with HBV or HCV Any known active liver disease, e.g. due to HBV, HCV, autoimmune hepatic disorders, or sclerosing cholangitis Patients with known HIV, HBV or HCV infection (note: testing for these infections is not required). Known HIV, HBV, HCV infection (except chronic or cleared HBV and HCV infection which will be allowed) Active infection with HIV, HBV or HCV The patient is seropositive for HIV 1, HIV 2, HBV, or HCV Active infection with HIV, HBV or HCV as defined below, due to the immunosuppressive effects of cyclophosphamide used and the unknown risks associated with viral replication. Active/chronic HBV or HCV infection; Other active disease including but not limited to ulceration of the upper gastrointestinal tract, autoimmune disease, HIV infection, active HBV and HCV infection. Known HIV or known active HBV or HCV infection Subject has active infection with HIV, HBV, HCV or HTLV as defined below: Immune deficiency disease or known history of HIV, HBV, HCV RECIPIENT: Seronegative for HIV, HCV and active HBV (surface antigen negative) within 2 months of registration Are not aware of HBV infection Known hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (patients with chronic or cleared HBV and HCV infection are eligible) Patients with evidence of active hepatitis B virus (HBV) or hepatitis C Virus (HCV) infection are not eligible; patients with cleared HBV and HCV infection will be allowed Known hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (subjects with laboratory evidence of cleared HBV and/or HCV will be permitted) Known chronic hepatitis B or C virus (HBV/HCV) infection Known human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (subjects with laboratory evidence of cleared HBV and HCV infection will be permitted) Known history of hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (patients with chronic or cleared HBV and HCV infection are eligible); it is not necessary to conduct HBV and HCV testing at screening Known human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (with the exception of chronic or cleared HBV or HCV infection, which will be allowed) No known active infection with hepatitis B virus (HBV), or hepatitis C virus (HCV). Patients with chronic or cleared HBV infection and HCV infection are eligible. Known human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (subjects with laboratory evidence of cleared HBV and HCV infection will be permitted) A history of hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (subjects with laboratory evidence of cleared HBV and/or HCV will be permitted Known human immunodeficiency virus (HIV), hepatitis B Virus (HBV), or hepatitis C Virus (HCV) infection (subjects with laboratory evidence of cleared HBV and HCV infection will be permitted) Known active infection with Hepatitis B Virus (HBV), Hepatitis C Virus (HCV), or HIV. Cleared HBV/HCV infection is not an exclusion, nor is HIV infection with cluster of differentiations 4 (CD4) counts >500 and an undetectable viral load. Known active hepatitis B virus (HBV), human immunodeficiency virus (HIV) or hepatitis C virus (HCV) infection (patients with chronic or cleared HBV and HCV infection, are eligible) Active hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (patients with chronic or cleared HBV and HCV infection are eligible) A history of hepatitis B virus (HBV) or hepatitis C virus (HCV) infection; subjects with laboratory evidence of cleared HBV and/or HCV will be allowed Known human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (with the exception of chronic or cleared HBV and HCV infection, which will be allowed); patients with human immunodeficiency virus (HIV) are not eligible if on anti-retroviral medications No known active infection with hepatitis B virus (HBV), or hepatitis C virus (HCV); patients with chronic or cleared HBV infection and HCV infection are eligible Known hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (patients with chronic or cleared HBV and HCV infection are eligible); patients with human immunodeficiency virus (HIV) are not eligible if on anti-retroviral medications Known human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection; subjects with laboratory evidence of cleared HBV and HCV infection will be permitted Patients with evidence of active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection are not eligible; patients with cleared HBV and HCV (0 viral load) infection will be allowed A history of hepatitis B virus (HBV) or hepatitis C virus (HCV) infection (with the exception of cleared HBV and HCV infection, which will be allowed) Subjects who have a history of human immunodeficiency virus (HIV) infection or subjects who have an active hepatitis B virus (HBV) or hepatitis C virus (HCV) infection requiring treatment due to a theoretical concern that the degree of immune suppression associated with the treatment may result in progression of HIV infection; subjects with chronic HBV or HCV infection are eligible at the investigator’s discretion if the subject is considered non-infectious based on serological markers Known hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (patients with chronic or cleared HBV and HCV infection are eligible); patients with known human immunodeficiency virus (HIV) infection are eligible if not on antiviral agents and cluster of differentiation (CD)4 counts are adequate (>= 500) Known hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (with the exception of chronic or cleared HBV and HCV infection, which will be allowed); patients with human immunodeficiency virus (HIV) are not eligible if on anti-retroviral medications Known human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (with the exception of chronic or cleared HBV and HCV infection, which will be allowed) A history of hepatitis B virus (HBV) or hepatitis C virus (HCV) infection (with the exception of cleared HBV and HCV infection, which will be allowed) A history of hepatitis B virus (HBV) or hepatitis C virus (HCV) infection (with the exception of cleared HBV and HCV infection, which will be allowed) Known hepatitis B virus (HBV) or hepatitis C virus (HCV) infection (unless cleared) will be excluded Known hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (patients with chronic or cleared HBV and HCV infection are eligible); patients with human immunodeficiency virus (HIV) are not eligible if on anti-retroviral medications Known human immunodeficiency virus (HIV), active hepatitis B virus (HBV), or active hepatitis C virus (HCV) infection (with the exception of chronic or cleared HBC and HCV infection, which will be allowed) Known human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (with the exception of chronic or cleared HBV and HCV infection, which will be allowed) Known human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (with the exception of chronic or cleared HBV and HCV infection which will be allowed) Known hepatitis B virus (HBV) or hepatitis C virus (HCV) infection (patients with chronic or cleared HBV and HCV infection are eligible); patients with human immunodeficiency virus (HIV) are not eligible if on anti-retroviral medications Known Hepatitis B Virus (HBV) or Hepatitis C Virus (HCV) infection. Subjects with laboratory evidence of cleared HBV and HCV infection may be enrolled; Known active hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (patients with chronic or cleared HBV and HCV infection, are eligible); patients with human immunodeficiency virus (HIV) are not eligible if on anti-retroviral medications Known human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (with the exception of chronic or cleared HBV and HCV infection, which will be allowed); HIV-positive patients on combination antiretroviral therapy are ineligible Known Human Immunodeficiency Virus (HIV), Hepatitis B Virus (HBV), or Hepatitis C Virus (HCV) infection (subjects with laboratory evidence of cleared HBV and HCV infection will be permitted). Known hepatitis B virus (HBV) or hepatitis C virus (HCV) infection (patients with chronic or cleared HBV and HCV infection are eligible); patients with human immunodeficiency virus (HIV) are not eligible if on anti-retroviral medications Known Human Immunodeficiency Virus (HIV), Hepatitis B Virus (HBV), or Hepatitis C Virus (HCV) infection (with the exception of chronic or cleared HBV and HCV infection) A history of known Hepatitis B Virus (HBV), or Hepatitis C Virus (HCV) infection. Subjects with laboratory evidence of cleared HBV and HCV infection may be enrolled. Active hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (patients with chronic or cleared HBV and HCV infection are eligible) Known history of human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (with the exception of chronic or cleared HBV and HCV infection which will be allowed) Subjects with known HIV infection, chronic active hepatitis B or C virus (HBV/HCV) infection. Known hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (patients with chronic or cleared HBV and HCV infection are eligible); patients with human immunodeficiency virus (HIV) are not eligible if on anti-retroviral medications Known human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (with the exception of chronic or cleared HBV and HCV infection which will be allowed) Known human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (subjects with laboratory evidence of cleared HBV and HCV infection will be permitted) Known hepatitis B or C virus (HBV or HCV) infection, unless the patient has been cleared for chemotherapy from experts on viral hepatitis (infectious disease specialists or hepatologists) Known human immunodeficiency virus (HIV), hepatitis B virus (HBV), or hepatitis C virus (HCV) infection (with the exception of chronic or cleared HBV and HCV infection which will be allowed) Known human immunodeficiency virus (HIV), hepatitis B virus (HBV) and hepatitis C virus (HCV) infection (Exception: Subjects with chronic or cleared HBV and HCV infection and stable liver function tests [bilirubin, AST] will be allowed)