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Natural and experimental infection of planorbids from the Island of Santa Catarina (Brazil) Infecção natural e experimental de Planorbídeos da Ilha de Santa Catarina (Brasil)

By Karen Schmidt Espídola, Maria Marques Machado and Paulo Roberto Petersen Hofmann


Studies on eight localities on the Island of Santa Catarina revealed the presence of three species of the molluscan family Planorbidae: Biomphalaria tenagophila, Drepanotrema cimex and Biomphalaria oligoza, the first one being naturally infected by Cercaria ocellifera, a furcocercaria with morphological characteristics of Cercaria caratinguensis, and by an unknown furcocercaria. Drepanotrema cimex was infected by a furcocercaria with characteristics of C. caratinguensis and by C. macrogranulosa. No natural infection was found in B. oligoza. B. tenagophila showed no susceptibility to the experimental infection by the BH-MG strain of Schistosoma mansoni from Belo Horizonte and maintained at laboratory in B. glabrata snails.<br>Pesquisas em oito localidades da Ilha de Santa Catarina revelaram a presença de três espécies da família Planorbidae: Biomphalaria tenagophila, Drepanotrema cimex e B. oligoza, estando a primeira naturalmente infectada por Cercaria ocellifera, furcocercária com características morfológicas de C. caratinguensis e uma furcocercária desconhecida. O segundo molusco citado, estava infectado com C. macrogranulosa e com furcocercária com características de C. caratinguensis, não sendo constatada infecção natural em B. oligoza. No processo de infecção experimental com cepa BH-MG de Schistosoma mansoni, cepa originária de Belo Horizonte e mantida em laboratório em mo lusco B. glabrata, B. tenagophila não se mostrou suscetível

Topics: Planorbid, Biomphalaria sp., Drepanotrema sp., Trematode, Cercariae, Furcocercariae, Infection, Schistosoma mansoni, Schistosomiasis, LCC:Medicine (General), LCC:R5-920, LCC:Medicine, LCC:R, DOAJ:Medicine (General), DOAJ:Health Sciences
Publisher: Instituto de Medicina Tropical
Year: 1992
DOI identifier: 10.1590/S0036-46651992000400004
OAI identifier:
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