Prevalence and distribution of angiostrongylus cantonensis (nematoda, angiostrongylidae) in achatina fulica (mollusca, gastropoda) in baixada santista, São Paulo, Brazil
Rev. Soc. Bras. Med. Trop
;
50(1): 92-98, Jan.-Feb. 2017. tab, graf
Article
Dans Anglais
| LILACS
| ID: biblio-842828
ABSTRACT
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.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Escargots
/
Angiostrongylus cantonensis
/
Vecteurs de maladies
Type d'étude:
Étude de prévalence
/
Facteurs de risque
Limites du sujet:
Animaux
Pays comme sujet:
Amérique du Sud
/
Brésil
langue:
Anglais
Texte intégral:
Rev. Soc. Bras. Med. Trop
Thème du journal:
Médecine tropicale
Année:
2017
Type:
Article
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Universidade Estadual Paulista Júlio de Mesquita Filho/BR
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