Malacological survey of Biomphalaria snails in municipalities along the Estrada Real in the southeast of the State of Minas Gerais, Brazil

Revista da Sociedade Brasileira de Medicina Tropical

Guimarães, Ricardo José Paula de Souza e¹  Universidade Federal de Juiz de Fora, Juiz de Fora¹  Instituto Nacional de Pesquisas Espaciais, São José dos Campos¹  Mitterofhe, Adalberto¹  Pinheiro, Izabella de Oliveira¹  Secretaria Estadual de Saúde de Minas Gerais Juiz de Fora¹  Coimbra, Elaine Soares¹  Gonçalves, Murilo¹  Tibiriçá, Sandra Helena Cerrato¹  Carvalho, Omar dos Santos¹  Freitas, Corina da Costa¹  Lima, Adilson da Costa¹  Fundação Oswaldo Cruz, Belo Horizonte¹  Castro, Milton Ferreira de¹ 

关键词: Biomphalaria;    Schistosomiasis;    Estrada Real;    Tourism;    Ecotourism;    Spatial distribution;   

DOI  :  10.1590/S0037-86822011005000005

学科分类：农业科学（综合）

来源: Sociedade Brasileira de Medicina Tropical

【 摘 要 】

INTRODUCTION: The increasing practice of ecotourism and rural tourism in the State of Minas Gerais, Brazil, highlights the importance of studies concerning the occurrence of potential intermediate hosts of Schistosoma mansoni. This study aimed to identify species of Biomphalaria snails in municipalities along the Estrada Real, an important Brazilian tourism project.METHODS: The specimens were collected in different water collections of 36 municipalities along the Estrada Real in the southeast of the State of Minas Gerais. Biomphalaria species were characterized using both morphological and molecular approaches. The research was conducted between August 2005 and September 2009 and all the sites visited were georeferenced using GPS.RESULTS: Six Biomphalaria species were found in 30 of the 36 municipalities studied: glabrata, tenagophila, straminea, peregrina, occidentalis and schrammi. The first three species of Biomphalaria, recognized as intermediate hosts of S. mansoni, were present in 33.3%, 47.2% and 8.3% of the municipalities studied, respectively. The mollusks were found in different types of water collections and no infection by S. mansoni was detected. The highest occurrence of Biomphalaria concentration was verified in the area covered by the Caminho Novo route (Diamantina/MG to Rio de Janeiro/RJ).CONCLUSIONS: Considering the occurrence of schistosomiasis in the State of Minas Gerais and the socioeconomic repercussions involved in the Estrada Real Project, this work focuses on the vulnerability of water collections due to the presence of Biomphalaria mollusks and emphasizes the need for epidemiological surveillance and sanitary and educational measures integrated with the local community and tourism sectors.

【 授权许可】

Unknown