Investigation of a leptospirosis outbreak in triathlon participants, Réunion Island, 2013

摘要: We report herein the investigation of a leptospirosis outbreak occurring in triathlon competitors on Reunion Island, Indian Ocean. All participants were contacted by phone or email and answered questionnaire. Detection molecular characterization pathogenic Leptospira was conducted inpatients rodents trapped at vicinity event. Of 160 athletes competing, 101 (63·1%) agreed to participate study. Leptospirosis biologically confirmed for 9/10 suspected cases either real-time PCR serological tests (MAT ELISA). The total attack rate, children’s swimmers’ rate adult swimmers respectively estimated 8·1% [95% confidence interval (CI) 4·3–14·7], 0%, 12·7% (95% CI 6·8–22·4) 23·1% 12·6–33·8). reported significantly more wounds [risk ratio (RR) 4·5, 95% 1·6–13], wore complete neoprene suits less often (RR 4·3, 1·3–14·5) most frequently unlicensed 6·6, 2·9–14·8). epidemiological supported that some measures such as use proved efficient protecting against infection. detection rats revealed high infection rates. Partial sequencing 16S gene serology both human animal samples strongly suggests main contaminators likely origin humans.