Leptospirosis is a worldwide-distributed zoonosis affecting 100 million people per year in the world; it is caused by spirochetes of the genus Leptospira. Many serovars grouped into 23 serogroups have been implicated in human disease, and seven genomic pathogenic species were identified by hybridization studies deoxyribonucleic acid. Our retrospective study concerned a series of 77 observations for hospitalized patients at the service of Hygiene of the SAIPP Kenitra, Sidi Slimane, Sidi Kacem of 2010 to 2016. We analyzed through these files, the epidemiologic, clinical, biological, and therapeutic characteristics of leptospirosis. It will also be a question of determining the indicators of health and of determining the provinces and the common to risk. During the period of the study, 77 cases of leptospirosis were indexed.

Index Terms- Leptospirosis, zoonosis, ACM, risk factors, epidemiology.