1. Burdwan Medical College and Hospital, Burdwan, India
2. ICMR-DHR Viral Research & Diagnostic Laboratory, Burdwan Medical College, Burdwan, India
3. Dow University of Health Science, Karachi, Pakistan
4. Raiganj Government Medical College and Hospital, Raiganj, India
5. GMERS Medical College, Ahmedabad, India
6. Calcutta Medical College and Hospital, Kolkata, India
7. Department of Research, Medical Research Circle, Bukavu, DR Congo