Human leptospirosis: a twenty-nine-year serological study in São Paulo, Brazil

A retrospective study of 9,335 cases of human leptospirosis in the state of São Paulo, Brazil, diagnosed between 1969 and 1997 showed that the disease is endemic throughout the state. Middle-aged adults, with a range of 20-39 years, were most frequently infected (32.40%). The mean annual incidence w...

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Bibliographic Details
Main Authors: Eliete Caló Romero, Carla Cristiane da Motta Bernardo, Paulo H. Yasuda
Format: Article in Journal/Newspaper
Language:English
Published: Universidade de São Paulo (USP) 2003
Subjects:
Human leptospirosis
Epidemiology
Serology
Brazil
Arctic medicine. Tropical medicine
RC955-962
Infectious and parasitic diseases
RC109-216
Arctic
Online Access:https://doaj.org/article/095761780d4644ecb82f7282e5269a8b
Description
Summary:A retrospective study of 9,335 cases of human leptospirosis in the state of São Paulo, Brazil, diagnosed between 1969 and 1997 showed that the disease is endemic throughout the state. Middle-aged adults, with a range of 20-39 years, were most frequently infected (32.40%). The mean annual incidence was 0.53 per 100,000 population and the disease was more frequent in males (87.0%). Cases occurred mainly in January to April each year. A peak was observed in 1991 and 1996 which rainfall average was 159.9 and 160.3, respectively. These data emphasize the potential public health importance of leptospirosis in the state of São Paulo, Brazil.

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