1. Department of Biology, Deanship of Educational Services, Qassim University, P.O. Box 5888, Unaizah 56219, Qassim, Saudi Arabia
2. Department of Parasitology, Faculty of Veterinary Medicine, Zagazig University, P.O. Box 44519, Zagazig 44516, Egypt
3. Medical Microbiology and Immunology Department, Faculty of Medicine, Zagazig University, P.O. Box 44516, Zagazig 44519, Egypt
4. Laboratory Pathology and Blood Bank, International Medical Center, P.O. Box 21589, Jeddah 23214, Makkah, Saudi Arabia