title: The distribution of the subtypes of HBsAg in Ethiopia.
abstract: Sera from various population groups in Ethiopia previously positive for hepatitis B surface antigen (HBsAg) have been investigated for their antigenic sub-specificities. Subtype and has been observed as the predominant subtype with 83% prevalence in the study population. The same subdeterminant of the HBsAg has been observed universally as the predominant subtype in blood donors, in patients with acute hepatitis B and in one patient who was an asymptomatic chronic carrier of HBsAg. Subtype ay was observed in three of seven patients with chronic hepatitis B.
mesh_terms: D000208:Acute Disease; D001782:Blood Donors; D002353:Carrier State / Q000453:epidemiology; D002908:Chronic Disease; D005002:Ethiopia; D006509:Hepatitis B / Q000453:epidemiology; D006514:Hepatitis B Surface Antigens / Q000032:analysis / Q000145:classification*; D006801:Humans
chemical_list: D006514:Hepatitis B Surface Antigens