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Related Experiment Video

Updated: Feb 8, 2026

Standard Operating Procedure for Lyssavirus Surveillance of the Bat Population in Taiwan

Standard Operating Procedure for Lyssavirus Surveillance of the Bat Population in Taiwan

Published on: August 27, 2019

Bat Astrovirus in Mozambique.

Flora Hoarau¹, Gildas Le Minter¹, Léa Joffrin¹

¹Université de La Réunion, UMR Processus Infectieux en Milieu Insulaire Tropical (PIMIT), INSERM 1187, CNRS 9192, IRD 249, 2 rue Maxime Rivière (GIP CYROI), 97490 Sainte-Clotilde, La Réunion, France.

Virology Journal

|June 22, 2018

Summary

Astroviruses (AstVs) circulate widely in bats in Mozambique, with 20.1% shedding the virus. This highlights the potential for astrovirus zoonotic transmission in the western Indian Ocean region.

Keywords:

Madagascar Mammastrovirus Mayotte Mozambique Triaenops afer

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Area of Science:

Virology
Zoonotic Diseases
Bat Ecology

Background:

Astroviruses (AstVs) infect diverse mammalian and avian species, including humans.
Bats are known reservoirs for various viruses, necessitating investigation into AstV circulation within bat populations.

Purpose of the Study:

To investigate the circulation and diversity of astroviruses in bats from Mozambique and Mayotte.
To assess the potential for zoonotic transmission of astroviruses from bats.

Main Methods:

Collection of biological samples from 338 bats in Mozambique and Mayotte.
Detection of the AstV RNA-dependent RNA-polymerase gene using a pan-AstV semi-nested polymerase chain reaction assay.

Main Results:

Astroviruses were detected in 20.1% of bats sampled in Mozambique, with significant interspecific variation.
No AstVs were detected in bats from Mayotte.
Phylogenetic analysis revealed diverse AstV lineages, with some suggesting host-virus associations and links to viruses found in Malagasy bats.

Conclusions:

Active circulation of diverse astroviruses in bats along the southeastern African coast and western Indian Ocean islands is supported.
Further assessment of astrovirus zoonotic transmission risk to human populations is warranted.