An kiyasta cewa mutane miliyan bakwai zuwa goma suna kamuwa da cutar leptospirosis a kowace shekara. A Amurka, akwai mutane miliyan 150 da ke fama da cutar leptospirosis a kowace shekara, tare da mutuwar mutane 58,900. Ana samun Leptospirosis a cikin birane da yankunan karkara a wurare masu zafi, wurare masu zafi, da yankuna masu zafi. An gano haɗarin mutuwa a cikin yankuna 5 zuwa 10%. Yawan kamuwa da cuta na shekara-shekara ya bambanta daga 0.1 zuwa 1 a kowace 100,000 a cikin yanayin zafi zuwa 10 zuwa 100 a kowace 100,000 a cikin yanayin zafi. Wannan yana haifar da ƙananan adadin lokuta da aka yi rajista fiye da yiwuwar wanzu. An lura da mafi girman ƙididdigar cutar da mutuwar cutar a Kudanci da Kudu maso gabashin Asiya, Caribbean, Latin Amurka da Afirka. Antarctica shine kawai wurin da ba a kamu da cutar leptospirosis ba. A Amurka, akwai mutane miliyan 100 zuwa 150 da ke fama da cutar leptospirosis a kowace shekara, tare da mutuwar mutane 58,900. A cikin 1994, an dakatar da cutar leptospirosis a yankunan birane da yankuna masu zafi.
miliyan bakwai zuwa goma