1Department of Microbiology, Veterinary Faculty, U.P. Pandit Deen Dayal Upadhyay Pashu Chikitsa Vigyan Vishwavidalaya Evam Go Anusandhan Sanasthan, Mathura-281001 (UP).
2High Security Animal Disease Laboratory, Indian Veterinary Research Institute, Anandnagar, Bhopal-462021 (MP).