in a prevalence survey conducted between september 1982 and april 1984 , initial serum samples from 74 % of hemophiliacs who had ever been treated with commercial factor viii concentrate , 90 % of those frequently treated with factor viii concentrate , and 50 % of those treated with both factor viii and factor ix concentrates had antibodies reactive against antigens of htlv iii , compared with none of the hemophiliacs treated only with factor ix concentrate or volunteer donor plasma or cryoprecipitate .
C0229671
serum
C0032105
plasma