Document 2623 DOCN M94A2623 TI Early diagnostic markers of HIV infection in infants born to HIV seropositive mothers. DT 9412 AU Wasi C; Foongladda S; Sutthent R; Likanonsakul S; Louisirirotchanakul S; Chearskul S; Thongcharoen P; Department of Microbiology, Faculty of Medicine Siriraj Hospital,; Mahidol University, Bangkok, Thailand. SO Int Conf AIDS. 1994 Aug 7-12;10(1):262 (abstract no. PB0476). Unique Identifier : AIDSLINE ICA10/94369952 AB OBJECTIVE: To establish the diagnostic tests for diagnosis of HIV infection in infants born to HIV seropositive mothers. METHODS: The 108 infants born to HIV seropositive mothers were followed up in the Special Pediatric Clinic, Siriraj Hospital during April 1992 to December 1993. A total of 275 subsequent blood samples were investigated for anti-HIV-1 by the two ELISA (Genelavia & Wellcozyme), PA (Fujirebio); p24 antigen by ELISA after acid treatment for immune complex dissociation (Coulter) and nested PCR for gag region (SK 380/SK390, SK38/SK39). RESULTS: The 65 infants showed seroreversion at the age of 6 to 15 months and assumed to be non-infected cases. The 30 infants shown symptoms compatible to Pediatric AIDS. The 13 infants were asymptomatic but positive for PCR, and/or p24 Ag and anti-HIV. PCR were positive in 95% (43/45 samples) of AIDS case and 93% (29/31) in asymptomatic, while p24 Ag was positive in 70% of AIDS case and 58% of asymptomatic ones. DISCUSSION AND CONCLUSION: PCR is the most sensitive test for early diagnosis of HIV infection in infants. The positive PCR was nearly 100% at the age of newborn to 6 months. The p24 Ag after acid treatment is a practical test but gave only 58% positive in asymptomatic cases. DE *AIDS Serodiagnosis Enzyme-Linked Immunosorbent Assay Female Follow-Up Studies Human HIV Antibodies/BLOOD HIV Core Protein p24/BLOOD HIV Infections/DIAGNOSIS/IMMUNOLOGY/*TRANSMISSION HIV Seropositivity/DIAGNOSIS/IMMUNOLOGY/*TRANSMISSION HIV-1/*IMMUNOLOGY Infant Infant, Newborn Male Polymerase Chain Reaction Pregnancy Pregnancy Complications, Infectious/*DIAGNOSIS/IMMUNOLOGY MEETING ABSTRACT SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).