Document 2771 DOCN M94A2771 TI Evaluation of the HIV antibody detection in oral fluid from high risk subjects in Thailand. DT 9412 AU Isarangura NA; Auwanit VV; Lokett R; Songsomboon S; Bhumisawasdi J; Department of Medical Sciences, Ministry of Public Health,; Bangkok, Thailand. SO Int Conf AIDS. 1994 Aug 7-12;10(1):229 (abstract no. PB0344). Unique Identifier : AIDSLINE ICA10/94369804 AB OBJECTIVES: To determine the feasibility of using oral fluid for the detection of HIV antibodies. METHOD: Matched oral fluid and serum samples were obtained from a hospital for drug user in Thailand. The Orasure device (Epitope Inc.) was used to collected oral specimens. Sets of oral fluid and serum were tested with the Vironostika HIV-1 Microelisa (Organon Teknika). Repeated reactive samples and those giving discordant results were further confirmed by serum Western blotting (Epitope Inc.) RESULTS: The sensitivity and specificity of oral sample testing, using the results of serum testing as a gold standard, are 100% (84/84) and 99.5% (219/220). for HIV antibody detection. Six serum samples produced inconclusive results by western blot. Four of matched oral fluid specimens were positive and 2 were negative by EIA. DISCUSSION AND CONCLUSIONS: HIV antibody testing in oral fluid obtained by Orasure device is highly sensitive and specific. The use of an oral sample provide a safer and more convenient procedure than blood sample for HIV antibody detection with the application in surveillance as well as those problems on blood collection. However, retesting of blood sample is necessary for diagnosis purpose. Detection of low level HIV antibody in oral fluid need some modification of EIA system to get a good sensitivity and specificity. Disadvantage of this technique is a high cost of collecting device for oral fluid. DE Blotting, Western Comparative Study *Enzyme-Linked Immunosorbent Assay Evaluation Studies Exudates and Transudates/*IMMUNOLOGY Gingiva/*IMMUNOLOGY Human HIV Antibodies/*ANALYSIS/BLOOD HIV Infections/COMPLICATIONS/*DIAGNOSIS HIV-1/*IMMUNOLOGY Risk Factors Sensitivity and Specificity Specimen Handling/INSTRUMENTATION Substance Abuse, Intravenous/COMPLICATIONS Thailand/EPIDEMIOLOGY MEETING ABSTRACT SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).