Impaired Cellular Immunity to Cytomegalovirus in Congenitally Infected Children and Their Mothers

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Abstract
Cell-mediated immunity to cytomegalovirus (CMV) was determined in congenitally infected children and their mothers by use of assays for CMV-specific lymphocyte blastogenesis and interferon production. Six viruric children responded poorly in both assays. Two older nonviruric children responded in the blastogenesis assay, and lymphocytes from one of them produced interferon. Mothers of older children usually responded in the blastogenesis assay, but only one of them produced interferon. Mothers whose infected infants were younger than nine months of age responded poorly in both assays, while control seropositive postpartum women generally responded normally. The cellmediated immune defects detected in this study may playa role in the pathogenesis of congenital CMV infection.

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