title: Apparently healthy HBs antigen carriers: ABO blood group distribution and ay : ad ratio.
abstract: HBs antigen (HBsAg) incidence and subtype ratio were studied in apparently healthy HBsAg carriers and correlated with the ABO blood group of the subjects investigated. The incidence of subjects belonging to blood group AB was higher among the healthy carriers than in the unselected normal population, and the ay : ad ratio was much lower in this blood group than in the other ones.
mesh_terms: D000017:ABO Blood-Group System; D002353:Carrier State; D006509:Hepatitis B / Q000453:epidemiology* / Q000276:immunology; D006511:Hepatitis B Antigens / Q000032:analysis; D006801:Humans; D012383:Romania
chemical_list: D000017:ABO Blood-Group System; D006511:Hepatitis B Antigens