1. Department of Livestock Development; National Institute of Animal Health; Bangkok Thailand
2. Animal Population Health Institute; College of Veterinary Medicine and Biomedical Sciences; Colorado State University; Fort Collins CO USA
3. United States Department of Agriculture; Animal Plant Health Inspection Service; Veterinary Services; Centers for Epidemiology and Animal Health; Fort Collins CO USA
4. Faculty of Veterinary Medicine; Chiangmai University; Chiang-Mai Thailand
5. Environmental & Radiological Health Sciences; Colorado State University; Fort Collins CO USA