Characterization and phylogenetic analysis of new bat astroviruses detected in Gabon, Central Africa

Rougeron V., Suquet E., Maganda Gael D., Jiolle Davy, Mombo I.M., Bourgarel Mathieu, Motsch Peggy, Arnathau Céline, Durand Patrick, Drexler Jan Felix, Drosten Christian, Renaud François, Prugnolle Franck, Leroy Eric M.. 2016. Characterization and phylogenetic analysis of new bat astroviruses detected in Gabon, Central Africa. Acta Virologica, 60 (4) : 386-392.

Quartile : Q4, Sujet : VIROLOGY

Résumé : Astroviruses are emerging RNA viruses that cause enteropathogenic infections in humans and in other mammals. The identification of astroviruses in a wide range of animals highlights the zoonotic importance of these viruses. Bats can harbor many different viruses, among which some are highly pathogenic for humans (for instance, Nipah, Ebola and SARS coronavirus), and also several astroviruses. As some RNA viruses can be directly transmitted from bats to humans, it is crucial to collect data about their frequency, genetic diversity and phylogenetic characterization. In this study, we report the molecular identification of 44 new astroviruses (with a detection rate of 4.5%) in 962 apparently healthy bats that belong to five different species and that were captured in different caves in North-East Gabon, Central Africa. Our results show that bat astroviruses form a group that is genetically distinct from astroviruses infecting other mammals. Moreover, these astroviruses showed an important genetic diversity and low host restriction in bat species.

Mots-clés Agrovoc : virus des animaux, arn, Chiroptera, hôte, génétique des populations, phylogénie, variation génétique, mammifère, oiseau, genre humain, identification

Mots-clés géographiques Agrovoc : Gabon

Mots-clés complémentaires : Astroviridae

Mots-clés libres : Bat, Astroviruses, Gabon, Host restriction, Genetic diversity

Classification Agris : L73 - Maladies des animaux
000 - Autres thèmes
L72 - Organismes nuisibles des animaux

Champ stratégique Cirad : Axe 4 (2014-2018) - Santé des animaux et des plantes

Auteurs et affiliations

• Rougeron V., CIRMF (GAB)
• Suquet E., CIRMF (GAB)
• Maganda Gael D., Centre Interdisciplinaire de Recherches Médicales de Franceville (GAB)
• Jiolle Davy, CIRMF (GAB)
• Mombo I.M., CIRMF (GAB)
• Bourgarel Mathieu, CIRAD-ES-UPR AGIRs (ZWE) ORCID: 0000-0001-9774-7669
• Motsch Peggy, CIRMF (GAB)
• Arnathau Céline, CNRS (FRA)
• Durand Patrick, CNRS (FRA)
• Drexler Jan Felix, University of Bonn Medical Centre (DEU)
• Drosten Christian, University of Bonn Medical Centre (DEU)
• Renaud François, CNRS (FRA)
• Prugnolle Franck, CNRS (FRA)
• Leroy Eric M., CIRMF (GAB)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/584017/)

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