1 Institute of Microbiology, Center for Advanced Studies (CAS)/D-8 Research Center, University of Agriculture Faisalabad, Pakistan Academy of Sciences (PAS), Faisalabad, Pakistan.
2 Department of Clinical Sciences, Swedish University of Agricultural Sciences, Uppsala, Sweden.
3 Department of Disease Control and Epidemiology, National Veterinary Institute, Uppsala, Sweden.
4 Division of Biomedical and Life Sciences, Lancaster University, Lancaster, United Kingdom.