1. Veterinary Research Institute, Ipoh, Perak, Malaysia;
2. Animal Research Institute, Queensland Department of Primary Industries, Moorooka, Brisbane, Australia;
3. Department of Wildlife & National Parks, Kuala Lumpur, Malaysia;
4. CSIRO Australian Animal Health Laboratory, Geelong, Australia;
5. Centers for Disease Control and Prevention, Atlanta, Georgia, USA;
6. Department of Veterinary Services, Petaling Jaya, Malaysia