1. Directorate General of Livestock and Animal Health Services, Ministry of Agriculture of Indonesia, Jakarta, Indonesia
2. Pusat Veteriner Farma, National Center for Veterinary Biologics, Surabaya, Indonesia
3. Balai Besar Veteriner Wates, Disease Investigation Center, Wates, Yogyakarta, Indonesia
4. The Pirbright Institute, Pirbright, United Kingdom