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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/8471

Title: Abdominal Angiostrongylosis in Southern Brazil - Prevalence and Parasitic Burden in Mollusc Intermediate Hosts from Eighteen Endemic Foci
Authors: Rambo, Paulo R.
Agostini, Aventino A.
Graeff-Teixeira, Carlos
Keywords: Angiostrongylus costaricensis - abdominal angiostrongylosis - mollusc hosts - prevalence - parasitic burden
Issue Date: 31-Dec-1997
Publisher: Fundação Oswaldo Cruz, Fiocruz
Citation: Memórias do Instituto Oswaldo Cruz (ISSN: 1678-8060) Vol 92 Num 1
Abstract: Angiostrongylus costaricensis is a parasitic nematode of rodents and molluscs are the intermediate hosts. Nocturnal collection of molluscs and search for infective third stage larvae of A. costaricensis was carried out in 18 endemic foci identified by the notification of a confirmed diagnosis in human biopsies or surgical specimens. Molluscs were digested in acidic solution and isolation of larvae eventually present was done in a Baermann funnel. Larvae identified by the presence of a delicate groove in the tail were counted to assess the individual parasitic burden. Four species were found infected, with ranges of prevalence in parenthesis: Phyllocaulis variegatus (7% to 33.3%); Bradybaena similaris (11.7% to 24.1%); Belocaulus angustipes (8.3% ) and Phyllocaulis soleiformis (3.3% to 14.2%). Parasitic burden varied from 1 to 75 with P. variegatus, 1 to 98 with B. similaris, 1 to 13 with B. angustipes and 1 larvae in each of two specimens of P. soleiformis. P. variegatus was present in all sites and was found infected with the highest prevalence figures and the highest individual parasitic burdens. These data stress the importance of veronicellid slugs as intermediate hosts for A. costaricensis in the endemic areas in Rio Grande do Sul, Brazil.
URI: http://hdl.handle.net/1807/8471
Other Identifiers: http://www.bioline.org.br/abstract?id=oc97002
Rights: Copyright 1997 Fundacao Oswaldo Cruz
Appears in Collections:Bioline International Legacy Collection

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