1. Instituto Nacional de Enfermedades Infecciosas, Buenos Aires, Argentina
2. Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control, Changping, Beijing, PR China
3. Institute of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing Key Laboratory of Emerging Infectious Diseases, Beijing, PR China
4. Instituto Nacional de Tecnologia Agropecuaria (INTA), Marcos Juárez, Córdoba, Argentina
5. Swine and Poultry Infectious Disease Center, (CRIPA), Faculty of Veterinary Medicine, University of Montreal, St-Hyacinthe, Quebec, Canada