Severe morbidity and mortality with breast milk associated cytomegalovirus infection.

Congenital cytomegalovirus (CMV) infection can cause significant morbidity and mortality in the newborn period. Postnatally acquired CMV infection has been thought to carry much less morbidity. We report 5 cases of severe morbidity and mortality in very low birth weight infants with postnatally acquired, breast milk associated CMV infection.