Document 0601 DOCN M95A0601 TI Analysis of early viral load in infants with perinatally-acquired HIV. American Pediatric Society 104th annual meeting and Society for Pediatric Research 63rd annual meeting; 1994 May 2-5; Seattle. DT 9510 AU Palumbo PE; Kwok S; Waters S; Wesley Y; McKinney N; Oleske JM; Connor EM; Dept. of Pediatrics, UMD-New Jersey Medical School, Newark, USA. SO Pediatr AIDS HIV Infect. 1994 Oct;5(5):322 (unnumbered abstract). Unique Identifier : AIDSLINE AIDS/95330443 AB The dynamics of HIV infection early in perinatally infected infants is poorly understood. Serial plasma and mononuclear cell (MNC) samples from 8 HIV-infected infants were assayed by quantitative RNA PCR for free virus and by quantitative DNA PCR for infected cells. Virus was detectable by RNA PCR in 6/8 infants in the first 11 days of life, with a mean among positives of 9.9 +/- 8.7 x 10(5) viral particles/ml plasma. For 5 of the 6 newborns, quantities of virus were very high (> or = 2.5 x 10(5)). Similarly, the HIV provirus was detected in 4/7 MNC samples with a mean among positives of 89 copies per 1 x 10(5) MNCs assayed (range, 53 to 115). Serial studies over a 3-12 month period revealed a persistent high viral load in 6 of 8 infants studied, with 9.3 +/- 8.7 x 10(5) virus particles per ml plasma (n = 28) and 215 +/- 313 HIV copies per 1 x 10(5) MNCs (n = 29). All but one infant had age-appropriate CD4 lymphocyte counts through 4 months of age and 5/8 through 6 months. Similarly, 50% had no HIV-associated signs or symptoms until 6 months of age, while those with early symptoms exhibited only organomegaly or lymphadenopathy. In conclusion, high viral loads were detected early in perinatal infection and usually persisted for months, even in conjunction with normal immune cell numbers and clinical course. As opposed to adults, persistence of substantial viremia levels suggests an ineffective immune response and the need to evaluate early antiretroviral therapy in perinatal HIV infection. DE CD4 Lymphocyte Count *Disease Transmission, Vertical DNA, Viral/ANALYSIS Human HIV/*ISOLATION & PURIF HIV Infections/IMMUNOLOGY/TRANSMISSION/*VIROLOGY Infant Infant, Newborn RNA, Viral/ANALYSIS Viremia MEETING ABSTRACT JOURNAL ARTICLE SOURCE: National Library of Medicine. NOTICE: This material may be protected by Copyright Law (Title 17, U.S.Code).