1.Male between the ages of 12 and 21 years 2.Residing in a long-term gender-segregated (no co-ed) YCF 3.Diagnosed with urogenital chlamydia as determined by a screening C. trachomatis NAAT 4.Anticipated length of stay at the YCF at the time of enrollment is at least 28 days 5.Willingness to provide written consent 6.Willingness to comply with study procedures