1. Department of Entomology, Faculty of Science, Ain Shams University, Cairo, Egypt.
2. Department of Microbiology, Faculty of Science, Ain Shams University, Cairo, Egypt.
3. Department of Zoonoses, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.
4. Department of Biochemistry, Faculty of Pharmacology, Cairo University, Giza, Egypt.