Abstract
PURPOSE: Mass treatment with azithromycin for trachoma endemic communities typically excludes infants under age 6 months, whose parents are provided with tubes of tetracycline to administer daily over 4 to 6 weeks. The authors sought to determine whether infants aged <6 months are a source of re-emergent infection in their families after mass treatment in trachoma-endemic communities. METHODS: In a longitudinal study of all children aged less than 10 years in four communities, the authors identified 91 infants aged <6 months living in 86 of 1241 households. All children aged