- Negative human immunodeficiency virus (HIV) enzyme linked immunosorbent assay (ELISA) for HIV 1 and 2 or indeterminate Western blot or other assay confirming that the serostatus does not reflect HIV infection, negative hepatitis C and hepatitis B serology or other assay confirming that the serostatus does not reflect active hepatitis C virus (HCV) or hepatitis B virus (HBV) infection