domingo, 3 de julio de 2016

Common occurrence of Cryptosporidium hominis in horses and donkeys. - PubMed - NCBI

Common occurrence of Cryptosporidium hominis in horses and donkeys. - PubMed - NCBI



 2016 Jun 3;43:261-266. doi: 10.1016/j.meegid.2016.06.004. [Epub ahead of print]

Common occurrence of Cryptosporidium hominis in horses and donkeys.

Jian F1Liu A2Wang R1Zhang S1Qi M1Zhao W2Shi Y1Wang J1Wei J1Zhang L3Xiao L4.

Abstract

Extensive genetic variation is observed within the genus Cryptosporidium and the distribution of Cryptosporidium species/genotypes in humans and animals appears to vary by geography and host species. To better understand the genetic diversity of Cryptosporidium spp. in horses and donkeys, we characterized five horse-derived and 82 donkey-derived Cryptosporidium isolates from five provinces or autonomous regions (Sichuan, Gansu, Henan, Inner Mongolia and Shandong) in China at the species/genotype and subtype levels. Three Cryptosporidium species/genotypes were identified based on the analysis of the SSU rRNA gene, including Cryptosporidium parvum (n=22), the Cryptosporidium horse genotype (n=4), and Cryptosporidium hominis (n=61). The identification of C. hominis was confirmed by sequence analysis of the HSP70 and actin genes. Subtyping using sequence analysis of the 60kDa glycoprotein gene identified 21 C. parvum isolates as subtype IIdA19G1, the four horse genotype isolates as subtypes VIaA15G4 (n=2) and VIaA11G3 (n=2), and the 61 C. hominis isolates as IkA16G1 (n=59) and IkA16 (n=2). The common finding of C. hominis reaffirms the heterogeneity of Cryptosporidium spp. in horses and donkeys and is possibly a reflection of endemic transmission of C. hominis in these animals. Data of the study suggest that horses and donkeys as companion animals may potentially transmit Cryptosporidium infections to humans.
Copyright © 2016 Elsevier B.V. All rights reserved.

KEYWORDS:

Cryptosporidium; Donkey; Genotyping; Horse; SSU rRNA gene; Subtyping; gp60 gene

[PubMed - as supplied by publisher]

No hay comentarios:

Publicar un comentario