Co‐circulation and characterization of novel African arboviruses (genus Ephemerovirus ) in cattle, Mayotte island, Indian Ocean, 2017

Dacheux Laurent, Dommergues Laure, Chouanibou Youssouffi, Doméon Lionel, Schuler Christian, Bonas Simon, Luo Dongsheng, Maufrais Corinne, Cetre-Sossah Catherine, Cardinale Eric, Bourhy Hervé, Metras Raphaëlle. 2019. Co‐circulation and characterization of novel African arboviruses (genus Ephemerovirus ) in cattle, Mayotte island, Indian Ocean, 2017. Transboundary and Emerging Diseases, 66 (6) : 2601-2604.

https://doi.org/10.1111/tbed.13323

Article de revue ; Article de revue à facteur d'impact

Prévisualisation

Version Online first - Anglais
Sous licence

.
593570.pdf
Télécharger (678kB) | Prévisualisation

Prévisualisation

Version publiée - Anglais
Sous licence

.
593570-ed.pdf
Télécharger (678kB) | Prévisualisation

Quartile : Outlier, Sujet : VETERINARY SCIENCES / Quartile : Q1, Sujet : INFECTIOUS DISEASES

Résumé : Mayotte is an island located in the Mozambique Channel, between Mozambique and Madagascar, in the South Western Indian Ocean region. A severe syndrome of unknown aetiology has been observed seasonally since 2009 in cattle (locally named “cattle flu”), associated with anorexia, nasal discharge, hyperthermia and lameness. We sampled blood from a panel of those severely affected animals at the onset of disease signs and analysed these samples by next‐generation sequencing. We first identified the presence of ephemeral bovine fever viruses (BEFV), an arbovirus belonging to the genus Ephemerovirus within the family Rhabdoviridae, thus representing the first published sequences of BEFV viruses of African origin. In addition, we also discovered and genetically characterized a potential new species within the genus Ephemerovirus, called Mavingoni virus (MVGV) from one diseased animal. Finally, both MVGV and BEFV have been identified in cattle from the same herd, evidencing a co‐circulation of different ephemeroviruses on the island. The clinical, epidemiological and virological information strongly suggests that these viruses represent the etiological agents of the observed “cattle flu” within this region. This study highlights the importance of the strengthening and harmonizing arboviral surveillance in Mayotte and its neighbouring areas, including Africa mainland, given the importance of the diffusion of infectious diseases (such as BEFV) mediated by animal and human movements in the South Western Indian Ocean area.

Mots-clés Agrovoc : arbovirus, bétail, surveillance épidémiologique

Mots-clés géographiques Agrovoc : Mayotte, océan Indien, France

Mots-clés libres : Africa, Arbovirus, Ephemerovirus, Mayotte, Next-generation sequencing, Rhabdovirus

Classification Agris : L73 - Maladies des animaux
L20 - Écologie animale
L01 - Élevage - Considérations générales

Champ stratégique Cirad : CTS 4 (2019-) - Santé des plantes, des animaux et des écosystèmes

Agences de financement européennes : European Commission

Programme de financement européen : H2020

Auteurs et affiliations