Echinococcus granulosus genotypes circulating in alpacas (Lama pacos) and pigs (Sus scrofa) from an endemic region in Peru

Memórias do Instituto Oswaldo Cruz

Elizabeth Sánchez²  Omar Cáceres¹  César Náquira²  Eduardo Miranda²  Franklyn Samudio¹  Octavio Fernandes¹ 

[1] ,Instituto Nacional de Salud Laboratório de Zoonosis Parasitaria Lima,Peru

关键词: Echinococcus granulosus;    genotype;    alpaca;    Peru;   

DOI  :  10.1590/S0074-02762012000200019

来源: SciELO

【 摘 要 】

The identification of the genotypes of Echinococcus granulosus present in livestock and wild animals within regions endemic for cystic echinococcosis (CE) is epidemiologically important. Individual strains display different biological characteristics that contribute to outbreaks of CE and that must be taken into account in the design of intervention programs. In this study, samples of hydatid cysts due to E. granulosus were collected from alpacas (4) in Puno and pigs (8) in Ayacucho in Peru, an endemic region for CE. Polymerase chain reaction amplification and DNA sequencing of specific regions of the mitochondrial cytochrome C oxidase subunit 1 and NADH dehydrogenase subunit 1 genes confirmed the presence of a strain common to sheep, the G1 genotype, in alpacas. Two different strains of E. granulosus were identified in pigs: the G1 and the G7 genotypes. This is the first report of the G1 genotype of E. granulosus in alpacas in endemic regions of CE in Peru.

【 授权许可】

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