1. Microbiology Section, Biology Department, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia.
2. Faculty of Medicine, Medical Microbiology and Immunology Department, Zagazig University, Cairo, Egypt.
3. Biochemistry Department, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia.
4. Faculty of Women, Biochemistry and Nutrition Department, Ain Shams University, Cairo, Egypt.