title: Coincident hepatitis B surface antigen and antibodies of different subtypes in human serum.
abstract: Three patients with simultaneously detectable hepatitis B surface antigen (HBsAg) and antibody (anti-HBs) in their sera were studied for subtypes of HBsAg and anti-HBs. In each case anti-HBs was found to be directed to a different subtype than that of the circulating HBsAg, indicating that reinfection (or simultaneous infection) with a second subtype occurred.
mesh_terms: D000914:Antibodies, Viral / Q000032:analysis*; D000939:Epitopes; D006509:Hepatitis B / Q000276:immunology*; D006514:Hepatitis B Surface Antigens / Q000032:analysis*; D006515:Hepatitis B virus / Q000276:immunology; D006801:Humans
chemical_list: D000914:Antibodies, Viral; D000939:Epitopes; D006514:Hepatitis B Surface Antigens