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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 102, No. 1, 2007, pp. 49-52
Bioline Code: oc07007
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 102, No. 1, 2007, pp. 49-52

 en Low susceptibility of Achatina fulica from Brazil to infection with Angiostrongylus costaricensis and A. cantonensis
Neuhauss, Erli; Fitarelli, Monaliza; Romanzini, Juliano & Carlos Graeff-Teixeira

Abstract

Introduction of Achatina fulica check for this species in other resources in Brazil has led to serious concerns about its role as vector for metastrongylid worms: Angiostrongylus costaricensis and A. cantonensis. Experimental infection with both parasites was performed to evaluate the potential risk for their transmission by the giant African snail. Groups of 5 animals, both wild and bred at captivity were exposed at different inocula: 1, 5, and 10 x 103 L1 of A. costaricensis and A. cantonensis. In all groups, few snails got infected and parasitic burden was low. Two different ways of infection were tested: ingestion produced higher numbers of L3 than the inoculation through an artificial hole in the shell. We also report the parasitological examination of 6 batches of wild A. fulica from Florianópolis, state of Santa Catarina, Brazil: only 1 out of 244 animals were infected with metastrongylid larvae. Taken together these data indicate that the giant African snail occurring in Southern Brazil is not a permissive host for both Angiostrongylus species and does not represent a significant risk for transmission of these parasites.

Keywords
Angiostrongylus cantonensis - Angiostrongylus costaricenis - Achatina fulica - experimental infection - Brazil

 
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