摘要
objective: to determine the prevalence of congenital cytomegalovirus infection in newborn infants admitted to an intensive care unit in a public hospital in porto alegre. methods: a cross-sectional study of 261 newborn infants born at a public hospital in the city of porto alegre in 2003 and admitted to the intensive care ward. urine samples were collected within 7 days of birth and a polymerase chain reaction-pcr performed to test for cytomegalovirus dna. results: the prevalence of congenital cytomegalovirus infection among the study population was 0.8% (95% ci: 0.097%-2.86%). it was not possible to assess risk factors because this prevalence was so low. conclusions: the prevalence of congenital cytomegalovirus infection in an intensive care unit at a public hospital in porto alegre was not considered elevated and was comparable with prevalence rates found by other studies.