1. Avian Diseases Section, Division of Pathology, Indian Veterinary Research Institute (IVRI), Izatnagar, UP, India
2. Division of Epidemiology, ICAR-Indian Veterinary Research Institute (IVRI), Izatnagar, UP, India
3. Division of Biological Standardization, Indian Veterinary Research Institute (IVRI), Izatnagar, UP, India
4. Indian Veterinary Research Institute (IVRI), Izatnagar, UP, India