[Occurrence of HB-s antigens and antiHB-s antibodies in blood donors at the Gdańsk Blood Transfusion Center].

The blood of 39 005 blood donors was examined, during a period of three years, for HBs antigen and anti-HBs antibodies. HBs antibodies, was found in the blood of 476 donors (1,22%) whereas anti-HBs antibodies were found in 109 cases (0,28%); The results obtained suggest that HBs antigen occurs with higher frequency among young donors, as well as among inhabitants of towns. No correlation of HBs antigen occurrence with sex or with ABO blood groups was found.