Abstract
Early identification of infants perinatally infected with HIV (HIV+) requires costly laboratory tests which are not widely available in countries with limited resources. We evaluated the utility of detection of non-specific HIV-related signs and symptoms and immunological abnormalities in the diagnosis of perinatal HIV infection in Brazilian infants younger than 10 months of age and followed from birth. A total of 27 HIV+ and 43 uninfected infants were studied. All infants exhibited one or more non-specific HIV-related findings at least once. HIV+ infants were more frequently symptomatic than HIV- infants only when older than 3 months. Combinations of clinical and immunological findings resulted in high sensitivity (85-100%) and low specificity (25-65%) rates for the diagnosis of HIV infection. Conversely, low CD4+ cell counts and hyperimmunoglobulinaemia showed low sensitivity (52%) and high specificity (100%) rates. In conclusion, the detection of similar findings in HIV- and HIV+ infants underscores the need of early confirmatory laboratory testing.
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