Prevalence and distribution of Angiostrongylus cantonensis (Nematoda, Angiostrongylidae) in Achatina fulica (Mollusca, Gastropoda) in Baixada Santista, São Paulo, Brazil
AUTOR(ES)
Guerino, Laura Rocha, Pecora, Iracy Lea, Miranda, Marcel Sabino, Aguiar-Silva, Cryslaine, Carvalho, Omar dos Santos, Caldeira, Roberta Lima, Silva, Reinaldo José da
FONTE
Rev. Soc. Bras. Med. Trop.
DATA DE PUBLICAÇÃO
2017-02
RESUMO
ABSTRACT INTRODUCTION Angiostrongylus cantonensis is causes eosinophilic meningoencephalitis in humans. Worldwide expansion of this nematode is linked to the dispersion of their hosts. This study aimed to determine the prevalence of A. cantonensis infection in Achatina fulica in the nine municipalities that make up Baixada Santista, São Paulo, Brazil. METHODS Angiostrongylus cantonensis larvae were analyzed using optical microscopy. We performed polymerase chain reaction and restriction fragment length polymorphism using restriction endonuclease ClaI, directed to the internal transcribed spacer region 2 of A. cantonensis larval DNA. RESULTS Of the 540 snails analyzed, 117 (21.7%) were infected by A. cantonensis. For morphological and morphometric analyses, 60 larvae were used. Second-stage larvae were, on average, 358.2µm long and 26.4µm wide, while third-stage larvae were, on average, 450µm long and 21.12µm wide. The tails of the larvae ended in a fine tip. CONCLUSIONS All municipalities comprising Baixada Santista had A. fulica that were naturally infected with A. cantonensis. All of the observed characteristics were typical of the species.
Documentos Relacionados
- First report of Angiostrongylus cantonensis (Nematoda: Metastrongylidae) in Achatina fulica (Mollusca: Gastropoda) from Southeast and South Brazil
- Achatina fulica Bowdich, 1822 (Mollusca: Gastropoda) como hospedeiro intermediário potencial do Angiostrongylus costaricensis Morera & Céspedes 1971
- Dinâmica populacional e biologia reprodutiva deAchatina fulica Bowdich, 1822 (Mollusca, Gastropoda) na cidade de Salvador - Bahia
- Ocorrência de Aelurostrongylus abstrusus (Railliet, 1898) (Nematoda: Metastrongylidae) infectando o Achatina (Lissachatina) fulica Bowdich, 1822 (Mollusca: Gastropoda) na região amazônica
- Morfologia e ultraestrutura de larvas de nematóides encontradas em Achatina fulica Bowdich, 1822 (Mollusca, Gastropoda) e sua relação com a atividade antrópica no município de Mesquita, Rio de Janeiro, Brasil