title: Biological and environmental factors associated with risk of schistosomiasis mansoni transmission in Porto de Galinhas, Pernambuco State, Brazil.
abstract: Schistosomiasis has expanded to the coast of Pernambuco State, Brazil, where there are frequent reports of Biomphalaria glabrata snails and human cases of the disease. This study analyzes factors related to schistosomiasis transmission risk in Porto de Galinhas. A one-year malacological survey was conducted to identify biological, abiotic, and environmental factors related to the host snail breeding sites. Data analysis used Excel 2010, GTM Pro, and ArcGis 10. A total of 11,012 B. glabrata snails were captured in 36 breeding sites, and 11 schistosomiasis transmission foci were identified. A negative correlation was found between breeding site temperature and snail density and infection rate, and a positive correlation with pH and salinity. The rainy season showed a positive correlation with snail density and infection rate. The study emphasizes the factors involved in the maintenance of schistosomiasis breeding sites, in light of persistence of this disease in Porto de Galinhas for more than 10 years.
authors: Centro de Pesquisas Aggeu Magalhães, Fundação Oswaldo Cruz, Recife, Brasil. onicio@gmail.com
authors: Onicio Batista
authors: OB
authors: Leal Neto
authors: Elainne Christine de Souza
authors: EC
authors: Gomes
authors: Fernando José Moreira de
authors: FJ
authors: Oliveira Junior
authors: Rafael
authors: R
authors: Andrade
authors: Diego Leandro
authors: DL
authors: Reis
authors: Reinaldo
authors: R
authors: Souza-Santos
authors: Silvana
authors: S
authors: Bocanegra
authors: Constança Simões
authors: CS
authors: Barbosa
mesh_terms: D000818:Animals; D001700:Biomphalaria; D001938:Brazil / Q000453:epidemiology; D004199:Disease Vectors; D019353:Endemic Diseases; D006801:Humans; D011156:Population Density; D012307:Risk Factors; D012555:Schistosomiasis mansoni / Q000453:epidemiology / Q000635:transmission*; D062206:Spatial Analysis