Universal Prenatal Screening and Testing and Chlamydia trachomatis Conjunctivitis in Infants.

We retrospectively reviewed all infant Chlamydia trachomatis eye cultures submitted to the Chlamydia Research Laboratory from 1986 to 2002. The positivity rate was 15.6% during the period before the implementation of universal prenatal screening (1986-1993) compared with 1.