1. Department of Veterinary Services, Wildlife Reserve Singapore, 80 Mandai Lake Road Singapore 729826, Singapore
2. School of Applied Science, Temasek Polytechnic, 21 Tampines Avenue 1, 529757, Singapore
3. School of Life Sciences and Chemical Technology, Ngee Ann Polytechnic, 535 Clementi Road Singapore 599489
4. Department of Veterinary Laboratory Diagnosis, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia