1. Department of Pathobiology, Riphah College of Veterinary Sciences, Lahore, Riphah International University, Islamabad, Pakistan;
2. Department of Epidemiology and Public Health, University of Veterinary and Animal Sciences, Lahore, Pakistan;
3. Department of Parasitology, University of Veterinary and Animal Sciences, Lahore, Pakistan;
4. Department of Parasitology, Faculty of Veterinary Science, University of Agriculture, Faisalabad, Pakistan