1 Department of Microbiology, Hazara University, Mansehra, Pakistan
2 Department of Microbiology, Abdul Wali Khan University, Mardan, Pakistan
3College of Veterinary Medicine, Jilin University, Xi’an Road 5333#, Changchun 130062, PR China
4College of Veterinary Sciences and Animal Husbandry, section microbiology, Abdul Wali Khan University, Mardan, Pakistan
5Collge of Veterinary Medicine, Nanjing Agricultural University, Nanjing China
6Department of Animal Nutrition, The University of Agriculture, Peshawar Pakistan
# both authors have equal contribution and are co-first authors.