Astrovirus in Reunion Free-tailed Bat (Mormopterus francoismoutoui)
Viruses(2021)
摘要
Astroviruses (AstVs) are RNA viruses infecting of a large diversity of avian and mammalian species, including bats, livestock, and humans. We investigated AstV infection in a free-tailed bat species, Mormopterus francoismoutoui , endemic to Reunion Island. A total of 380 guano samples were collected in a maternity colony during 38 different sampling sessions, from June 21st 2016 to September 4th 2018. Each sample was tested for the presence of the AstV RNA-dependent RNA-polymerase (RdRp) gene using a pan-AstV semi-nested polymerase chain reaction assay. In total, 27 guano samples (7.1%) tested positive, with high genetic diversity of the partial RdRp gene sequences among positive samples. A phylogenetic analysis further revealed that the detected viruses were genetically related to AstVs reported in rats, reptiles, dogs, and pigs, but did not cluster with AstVs commonly found in bats. Although more investigations need to be conducted to assess the prevalence of infected bats in the studied population, our findings show that Reunion free-tailed bats are exposed to AstVs, and suggest that cross-species transmission may occur with other hosts sharing the same habitat.
### Competing Interest Statement
The authors have declared no competing interest.
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