Our objective was to analyze, in formula-fed infants, correlates of HIV mother-to-child transmission, including cytomegalovirus (CMV) infection.
HIV-infected infants were matched with HIV-uninfected by maternal HIV RNA in a case-control design. Infant CMV infection was determined by CMV-IgG at 18 months and timed by earlier CMV-IgM or -DNA. Correlations were assessed using logistic regression.
In utero HIV infection was independently associated with congenital CMV infection (P=0.01), intrapartum HIV infection with congenital-plus-intrapartum/neonatal CMV infection (P=0.01), and overall HIV with overall CMV infection (P=0.001), as well as prematurity (P=0.004).
Congenital and acquired CMV infections are strong independent correlates of mother-to-child HIV transmission.
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