in the immunoblot experiments , antibodies of both immunoglobulin classes were mainly directed against haemophilus ducreyi antigens with relative molecular masses of 79,000 , 62,000 , 55,000 , 49,000 , and 26,000 , suggesting that these antigens may play a dominant role in the humoral immune response after infection .
C0003320
antigens
C0020967
humoral immune response