1. Tropical Medicine Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
2. Tropical Medicine Department, Faculty of Medicine, Al-Azhar University, Cairo, Egypt.
3. Physiology and Pathophysiology Department, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Canada.
4. Tropical Medicine Department, Faculty of Medicine, Al-Azhar University, Damietta, Egypt.
5. Damietta Fever Hospital, Damietta, Egypt.