| prevalence survey of cytomegalovirus infection in children in chengdu. | cytomegalovirus (cmv) is a common worldwide perinatal infection. although usually asymptomatic, it may cause deafness in up to 15% of these infants. a cross-sectional study was performed to determine the age-specific prevalence of cmv seropositivity in chinese children and to determine if any risk factors for infection could be identified. in a two-stage sampling procedure, nine districts were randomly selected from 70 citizenship districts in chengdu, sichuan province, people's republic of chin ... | 1990 | 2152840 |