1. Pir Mehr Ali Shah Arid Agriculture University (PMAS-AAUR), Rawalpindi, Pakistan.
2. Friedrich-Loeffler-Institut, Bundesforschungsinstitut für Tiergesundheit, Jena, Germany.
3. National Veterinary Laboratories, Park Road, Islamabad, Pakistan.
4. University of Veterinary and Animal Sciences, Lahore, Pakistan.
5. Institute of Tropical Medicine, Department of Biomedical Sciences, Unit of Epidemiology and Biostatistics, Antwerpen, Belgium.