1. French Agency for Food Safety (AFSSA), Avian and Rabbit Virology Immunology and Parasitology Unit (VIPAC), BP53, 22440 Ploufragan, France
2. Virus Genetics and Biosecurity Unit (UGVB), BP53, 22440 Ploufragan, France
3. United States Department of Agriculture (USDA), National Veterinary Services Laboratories (NVSL), PO Box 844, Ames, IA 50010, USA