1. French Agency for Food, Environmental and Occupational Health and Safety (ANSES)Laboratory of LyonUniversity of Lyon Lyon Cedex 07 France
2. VetAgro SupNational Institute for Agricultural Research (INRA)UMR EPIAAnimal EpidemiologyUniversity of Lyon Marcy l'Etoile France
3. ANSESAnimal Health LaboratoryUMR 1161 VirologyANSESINRAENVAEURL on Equine Diseases Maisons‐Alfort France
4. Dozulé Laboratory for Equine DiseasesANSES Goustranville France