1. Parasitology Department, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.
2. Microbiology Department, Faculty of Agriculture, Zagazig University, Zagazig, Egypt.
3. Pests and Plant Protection Department, National Research Centre, Giza, Egypt.
4. Department of Zoonoses, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt.