Abstract

Study on Leptospirosis incidences during 2004 until 2006 was done in Semarang City. Secondary data about Leptospirosis incidences were collected from Semarang Health Office. The result showed that within three years, 2004-2006, Leptospirosis was occuring in Semarang City. A different proportion of the case was found between male and female which the male is predominantly (66%) transmitted with Leptospirosis. There were more cases found in lower area, than in upper area. Besides, the pattern of cases almost look like as the pattern of rainfall index.   Keywords: Leptospirosis, rainfall index, Semarang City.