1. Clinical Medicine Laboratory, Indian Veterinary Research Institute, Izatnagar, Bareilly-243 122 (U.P.), India.
2. Division of Medicine, Indian Veterinary Research Institute, Izatnagar, Bareilly-243 122 (U.P.), India.
3. Division of Parasitology, Indian Veterinary Research Institute, Izatnagar, Bareilly-243 122 (U.P.), India.