Unusual hepatitis B virus findings in blood donors.

Patient 2: Occult hepatitis B infection without hepatitis B core antibodies A 50-year-old, HBV unvaccinated female blood donor exhibited reactive multiplex NAT, reactive discriminatory HBV NAT and non-reactive HBsAg results. Keywords: Hepatitis B; Hepatitis, viral; Diagnostic tests and procedures; Serology; Pathology, molecular; Blood banks EN Hepatitis B Hepatitis, viral Diagnostic tests and procedures Serology Pathology, molecular Blood banks 53 55 3 07/18/23 20230717 NES 230717 Clinical records Patient 1: Occult hepatitis B virus infection with hepatitis B core antibodies A 66-year-old, hepatitis B virus (HBV) unvaccinated male blood donor exhibited repeatedly reactive multiplex nucleic acid test (NAT) results for human immunodeficiency virus type 1, hepatitis C virus and HBV, and non-reactive discriminatory HBV NAT and hepatitis B surface antigen (HBsAg) results. Patient 3: Acute hepatitis B virus infection A 46-year-old, HBV unvaccinated male blood donor exhibited reactive multiplex NAT, reactive discriminatory HBV NAT and non-reactive HBsAg results. [Extracted from the article]