8. Known hepatitis B surface antigen (HBsAg) positive, or known or suspected active hepatitis C virus (HCV) infection. Note: Participants who have isolated positive hepatitis B core antibody (HBcAb) and/or hepatitis B surface antibody (HBsAb) (that is, in the setting of negative HBsAg) may be enrolled but must have an undetectable hepatitis B virus (HBV) viral load. Participants who have positive hepatitis C virus antibody (HCVAb) may be enrolled but must have an undetectable HCV viral load.