1. Veterinary Medical Research Institute, Budapest, Hungary
2. Hokkaido University, Sapporo, Japan
3. Umeå University, Umeå, Sweden
4. MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
5. CEMIC University Hospital, CONICET, Buenos Aires, Argentina
6. University of Veterinary Medicine, Vienna, Austria
7. Naval Medical Center, San Diego, CA, USA
8. Lovelace Respiratory Research Institute, Albuquerque, NM, USA
9. Purdue University, West Lafayette, IN, USA
10. Ruđer Bošković Institute, Zagreb, Croatia
11. Centro Nacional de Biotecnología, Madrid, Spain