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  • Title: Molecular detection of Blastocystis sp. subtype 14 in the Yezo sika deer (Cervus nippon yesoensis) in Hokkaido, Japan.
    Author: Shirozu T, Morishita YK, Koketsu M, Fukumoto S.
    Journal: Vet Parasitol Reg Stud Reports; 2021 Jul; 25():100585. PubMed ID: 34474780.
    Abstract:
    This study describes the first report of Blastocystis sp. colonization in the sika deer (Cervus nippon) in Japan and in other animals in Hokkaido, Japan. Blastocystis sp. is one of the most widespread intestinal protist in a wide range of animals. Blastocystis sp. isolated from mammalian and avian species have been classified into 17 subtypes (STs). Some of the STs are zoonotic. The aim of this study was to evaluate Blastocystis sp. colonization in the Yezo sika deer (Cervus nippon yesoensis) in Hokkaido, Japan. The Yezo sika deer are currently overabundant and they are expanding their habitat to humans and livestock. A total of 132 deer fecal samples were subjected for molecular detection of Blastocystis sp. Of these, 60 (45.5%) samples were positive using PCR, which targets the small subunit ribosomal RNA gene sequence. All Blastocystis sp. DNA sequences from the Yezo sika deer were genotyped into ST14, which were originally reported in cattle. These findings indicate that the current public health risks of Blastocystis sp. from the Yezo sika deer is low, although more detailed future analysis is required.
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