title: Chronic "low-level" hepatitis B virus carrier with probable infectivity.
mesh_terms: D001782:Blood Donors; D002353:Carrier State; D006509:Hepatitis B / Q000635:transmission*; D006512:Hepatitis B Core Antigens / Q000032:analysis; D006514:Hepatitis B Surface Antigens / Q000032:analysis; D006801:Humans
chemical_list: D006512:Hepatitis B Core Antigens; D006514:Hepatitis B Surface Antigens