Schistosomiasis mansoni in urban Northeast Brazil: influence of rainfall regime on the population dynamics of Biomphalaria sp.

Revista da Sociedade Brasileira de Medicina Tropical

Daniel Santos Oliveira¹  Vanessa Bispo Santos¹  Andrea Gomes Santana Melo¹  Alvaro Silva Lima¹  Camila Dantas Carvalho¹  Silmara Marques Allegretti¹  Claudia Moura De Melo¹  Rubens Riscala Madi¹  Veronica De Lourdes Sierpe Jeraldo¹ 

关键词: Biomphalaria glabrata;    Sergipe;    Urban environment;   

DOI  :  10.1590/0037-8682-1486-2013

来源: SciELO

【 摘 要 】

Introduction Our objective was to evaluate the influence of rainfall regime on the population dynamics of Biomphalaria in a potential urban focus of schistosomiasis in Aracaju, Brazil, during 2009-2010. Methods Snails were collected monthly and were counted, measured and identified; the level of infection and fecal contamination at the sampling sites was determined; rainfall data were obtained. Results High levels of fecal contamination were observed, and the abundance of Biomphalaria glabrata increased during the rainy and post-rainy seasons. The snails' size was variable, and infected snails were identified independently of rainfall. Conclusions These results provide evidence of anthropogenic and climate interference in an urban focus of schistosomiasis in the Aracaju metropolitan area.

【 授权许可】

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