1. Veterinary Virology and Animal Viral Diseases; Department of Infectious and Parasitic Diseases; FARAH; Faculty of Veterinary Medicine; University of Liège; Liège Belgium
2. UMR 1161 Virology; ANSES; Animal Health Laboratory; Maisons-Alfort France
3. UMR 1161 Virology; INRA; Maisons-Alfort France
4. UMR 1161 Virology; Ecole Nationale Vétérinaire d'Alfort; Maisons-Alfort France
5. National Center for HIV/Hepatitis/STD/TB Prevention; Division of Viral Hepatitis; Centers for Disease Control and Prevention; Atlanta GA USA
6. ANSES Laboratory of Ploufragan/Plouzané; Unit of Pig Epidemiology and Welfare; Ploufragan France