Abstract
Hepatitis B antigen and antibody were examined on 1, 984 adults in a village;for antigen with immune adherence hemagglutination method and for antibody with passive hemagglutionation method. Antigen were detected for 25 and antibody for 398 sera.The prevalence of 1.3 per cent for the antigen with this method is lower than that suspected from blood donors in Tokyo. Higher frequency was found in male, and in youth.In elderly persons, however, rather high prevalence was found than suspected before.
