Diagnoses: Hepatic decomposition, hepatitis B, human immunodeficiency virus (HIV)Medications: Interferon, nucleoside analogue, non‐structural protein 5a inhibitorProcedures: Liver ultrasonography, liver biopsy, hepatitis A/B vaccinationLabs: Albumin (serum), bilirubin, hepatitis C virus ribonucleic acid, international normalized ratio. The gene discussed is ALB; the disease is hepatitis A virus infection.