Abstract: The positive rate of B virus relative antibody (antibody to HSV - 1) in rhesus monkey sera was compared with that of B virus antibody by using ELISA. The positive rate of B virus relative antibody was 65%(13/20),while that of B virus antiboty in the same samples detected in Japan was 85%(17/20). In another experiment, B virus antibody was detected in 7 of the 70 serum samples negative in B virus relative antibody detected with ELISA and EIA. The results demonstrate that not all the B virus infectious monkeys can be detected by using HSV - 1 antigen.

Key words: "B virus antibody, Relative antibody, ELISA, EIA, Rhesus monkey "