1. Community Medicine Department; National Research Center; Cairo Egypt
2. Emerging Disease Epidemiology Unit; Institut Pasteur; Paris France
3. National Liver Institute; Menoufia University; Menoufia Egypt
4. Viral Hepatitis Research Lab; National Hepatology & Tropical Medicine Research Institute; Cairo Egypt
5. King Fahd Medical Research Center; King Abdulaziz University; Jeddah Saudi Arabia
6. Alexandria Fever Hospital; Alexandria Egypt
7. Faculty of Medicine; Minia University; Minya Egypt
8. Faculty of Medicine; Ain Shams University; Cairo Egypt
9. Endemic Medicine Department; Faculty of Medicine; Cairo University; Cairo Egypt
10. Conservatoire National des Arts et Métiers; Chaire Santé et Développement; Paris France