Peters RPH, Feucht UD, de Vos L, et al. - Given that sexually transmitted infections (STIs) can be transmitted from mother to neonate, researchers sought to determine the frequency of mother-to-child transmission (MTCT) of Chlamydia trachomatis, Neisseria gonorrhoeae, and Trichomonas vaginalis to the newborn nasopharynx. This research was nested in a cohort study of etiologic testing vs syndromic management for STIs among pregnant women living with HIV in South Africa. In the setting, there was a high frequency of MTCT of STIs to the nasopharynx of newborns. The effects of nasopharyngeal colonization and the benefits of STI testing on newborn health are still unknown.