Document 2716 DOCN M94A2716 TI Detection of HIV-1 and HIV-2 antibodies using a newly developed HIV-1 and HIV-2 combined passive hemagglutination assay. DT 9412 AU Jyomura S; Research Center, Dainabot Co., Ltd. SO Int Conf AIDS. 1994 Aug 7-12;10(1):240 (abstract no. PB0388). Unique Identifier : AIDSLINE ICA10/94369859 AB OBJECTIVE: To evaluate the sensitivity and specificity of a newly developed combined HIV-1/HIV-2 Hemagglutination assay. METHOD: A Passive Hemagglutination Assay (PHA) for the simultaneous detection of antibodies to HIV-1 and HIV-2 was developed using HIV-1 viral gp41, recombinant HIV-1 p24, and recombinant HIV-2 p36 antigens. The assay method utilizes serum or plasma of 1:16 dilution and triple antigen coated duracytes. The specificity evaluation was performed by testing populations of negative human plasma and HIV antibody negative autoimmune panels. Sensitivity was evaluated by testing confirmed Western blot positive HIV-1 and HIV-2 samples and commercially available HIV-1 seroconversion panels (BBI). RESULTS: More than 99.9% of specificity was obtained when 1,000 samples from healthy individuals and 79 samples from the patients of autoimmune diseases were tested. One hundred percent of detectability was obtained by testing 30 of HIV-1 and 100 of HIV-2 confirmed blot positive samples. In eight seroconversion panels (total 58 members), current Combo PHA detected 30/58 (52%) and Western blot detected 26/58 (45%). DISCUSSION/CONCLUSION: Current HIV-1 and HIV-2 combined PHA could detect both anti HIV-1 and HIV-2 antibodies with high sensitivity and specificity. DE *AIDS Serodiagnosis Blotting, Western *Hemagglutination Tests Human HIV Antibodies/*BLOOD HIV Antigens/IMMUNOLOGY HIV Seropositivity/*DIAGNOSIS/IMMUNOLOGY HIV-1/*IMMUNOLOGY HIV-2/*IMMUNOLOGY Predictive Value of Tests MEETING ABSTRACT SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).