1. Department of Microbiology and Hygiene, Faculty of Veterinary Science, Bangladesh Agricultural University , Mymensingh, Bangladesh
2. Department of Animal Sciences, University of California—Davis , Davis, California, USA
3. Department of Gynaecology, Obstetrics and Reproductive Health, Bangabandhu Sheikh Mujibur Rahman Agricultural University , Gazipur, Bangladesh
4. Naogaon District Hospital , Naogaon, Bangladesh