- The patient has positive viral hepatitis B, hepatitis C or HIV serologies on screening laboratories. (Patients with a positive hepatitis B surface antibody (HBsAb) test with a history of prior hepatitis B immunization are eligible as long as other criteria are met (i.e., negative tests for: hepatitis B surface antigen [HBsAg], hepatitis B core antibody [HBcAb], and hepatitis C virus antibody [HCVAb]).)