Chlamydia trachomatis genogroups using ompA and multilocus sequence typing (MLST) were determined in consecutive isolates from school students aged 18 or older in the district of Brescia, Italy, 2012-2013. Among 40 samples, 4 ompA genovars and 18 STs were identified. Genovar E predominated (70 %) including five STs derived from ST59 (29 % of all isolates). This study, combining ompA and MLST typing of C. trachomatis school teenagers, suggests limited mixing and sexual interchange in this population.
Keywords: Chlamydia trachomatis; MLST; Survey; Typing; ompA gene.