1. Department of Food Animal Clinic, Faculty of Veterinary Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.
2. Field Epidemiology Training Program, Ministry of Public Health, Nonthaburi 11000, Thailand.
3. Veterinary Research and Development Center, Ministry of Agriculture and Cooperation, Bangkok 10200, Thailand.
4. Johns Hopkins Center for a Livable Future, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA.
5. Bureau of Disease Control and Veterinary Services, Department of Livestock Development, Ministry of Agriculture and Cooperation, Bangkok 10200, Thailand.
6. Department of Veterinary Medicine, Panel "Veterinary Public Health", Institute of Food Hygiene, Free University Berlin, Berlin 14195, Germany.
7. Bureau of Epidemiology, Department of Disease Control, Ministry of Public Health, Nonthaburi 11000, Thailand.
8. Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand.