Incidence of Leptospirosis infection in the East Zone of Sao Paulo City, Brazil

International Archives of Medicine

Fernando LA Fonseca⁴  Flávia C Goulart⁴  Sheylla Nadjane Batista Lacerda⁴  Vitor E Valenti¹  Luiz Carlos De Abreu⁴  Roseli Corazzini⁴  David Feder⁴  Loide C Chaves⁶  Edimar C Pereira³  Virginia BC Junqueira³  Ligia A Azzalis³  Katya C Rocha⁵  Luciana Z Caputto²  Alexandre LA Fonseca²  Kátia Eiko Miyazato² 

[1] Departamento de Fonoaudiologia, Faculdade de Filosofia e Ciências, Universidade Estadual Paulista, UNESP, Av. Hygino Muzzi Filho, 737, Marília, SP, 17.525-900, Brazil;IPESSP (Instituto Paulista de Ensino em Saúde de São Paulo), Alameda Franca, 1604, São Paulo, SP, 01422-001, Brazil;Instituto de Ciências Químicas, Ambientais e Farmacêuticas, Universidade Federal de São Paulo, UNIFESP, Rua Prof. Artur Riedel, 275, Diadema 09972-270, Brazil;Departamento de Morfologia e Fisiologia, Faculdade de Medicina do ABC, Av. Príncipe de Gales, 821, Santo André, SP 09060-650, Brazil;Departamento de Patologia, Faculdade de Medicina do ABC, Av. Príncipe de Gales, 821, Santo André, SP, 09060-650, Brazil;Departamento de Enfermagem, Faculdade de Medicina do ABC, Av. Príncipe de Gales, 821, Santo André, SP, 09060-650, Brazil

关键词: Laboratory methods;    Points of flooding;    Precipitation index;    Epidemiological survey;   

Others  :  803148
DOI  :  10.1186/1755-7682-6-23

 received in 2012-09-26, accepted in 2013-05-11,  发布年份 2013

【 摘 要 】

Background

Leptospirosis is a zoonosis which is spread through contamined running water. This contaminations is seriously affected by the flooding which occurs in the area surrounding the Aricanduva river. The transmission of the disease results mainly from the contact of water with soil contaminated by the urine of infected animals. We aimed to conduct an epidemiological survey on Leptospirosis cases in Sao Paulo East Zone area.

Method

The analysis conducted in this study was based on data collected from the health authorities of that region close the Aricanduva river between 2007 and 2008 years, which give the rates of confirmed cases, mortality and death from human Leptospirosis. Other information concerned with the relationships among rainfall index, points of flooding and incidence of Leptospirosis.

Results

We observed a direct and important water contamination. Records of flooding points and dates of the reported cases in the region showed a direct relationship from which the period of higher rainfall also recorded an increase in cases. The annual record of the city and the region and rainfall regions also presented correlation.

Conclusion

The association between the indices of flooding and Leptospirosis cases indicates that preventive measures are necessary to avoid exposing the community.

【 授权许可】

   
2013 Miyazato et al.; licensee BioMed Central Ltd.

【 图 表 】

Figure 1.

Figure 2.

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