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New genotypes and molecular characterization of Enterocytozoon bieneusi in pet birds in Southwestern China.


ABSTRACT: Enterocytozoon bieneusi, a unicellular enteric microsporidian parasite, can infect humans and a wide range of animals throughout the world. Although E. bieneusi has been identified in many animals, there is no information regarding the genotypes of E. bieneusi in pet birds in China. Birds are important sources of emerging infectious diseases that affect humans, and immunosuppressed individuals can be exposed to potential zoonotic agents shed by birds. The aim of the present study was to determine the prevalence and genotypic diversity of E. bieneusi in pet birds, as well as assessed its zoonotic potential. A total of 387 fecal samples were collected from Psittaciformes (n?=?295), Passeriformes (n?=?67), and Galliformes (n?=?16) from four pet markets in Sichuan province, Southwestern China. The overall prevalence of E. bieneusi in pet birds was 25.1% based on nested polymerase chain reaction analysis of the internal transcribed spacer (ITS) region of the ribosomal RNA (rRNA) gene (Psittaciformes, 21.7%; Passeriformes, 37.3%; Galliformes, 50.0%). Eight genotypes of E. bieneusi were identified, including five known genotypes (D, SC02, BEB6, CHB1, and MJ5) and three novel genotypes (SCB-I, SCB-II, and SCB-III). In phylogenetic analysis, genotypes D and SC02 and one novel genotype SCB-II were clustered within group 1, genotype BEB6 was classified within group 2, and the remaining genotypes (CHB1, MJ5, SCB-I, and SCB-III) clustered with group 10. To the best of our knowledge, this is the first report of E. bieneusi infection in pet birds in China. Genotypes D, SC02, and BEB6 that have been previously identified in humans, were found in pet birds in this study, suggesting that these pet birds can be a potential source of human microsporidiosis in China.

SUBMITTER: Deng L 

PROVIDER: S-EPMC6811997 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature

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New genotypes and molecular characterization of <i>Enterocytozoon bieneusi</i> in pet birds in Southwestern China.

Deng Lei L   Yue Chan-Juan CJ   Chai Yi-Jun YJ   Wang Wu-You WY   Su Xiao-Yan XY   Zhou Zi-Yao ZY   Wang Long-Qiong LQ   Li Ling-Yu LY   Liu Hai-Feng HF   Zhong Zhi-Jun ZJ   Cao Sui-Zhong SZ   Hu Yan-Chun YC   Fu Hua-Lin HL   Peng Guang-Neng GN  

International journal for parasitology. Parasites and wildlife 20190809


<i>Enterocytozoon bieneusi</i>, a unicellular enteric microsporidian parasite, can infect humans and a wide range of animals throughout the world. Although <i>E. bieneusi</i> has been identified in many animals, there is no information regarding the genotypes of <i>E. bieneusi</i> in pet birds in China. Birds are important sources of emerging infectious diseases that affect humans, and immunosuppressed individuals can be exposed to potential zoonotic agents shed by birds. The aim of the present  ...[more]

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