1. Medical Biochemistry & Molecular Biology Department, Tanta University, Tanta, Egypt
2. Microbiology & Immunology Department, Tanta University, Tanta, Egypt
3. Clinical Pathology Department, Tanta University, Tanta, Egypt
4. Public Health & Community Medicine Department, Faculty of Medicine, Tanta University, Tanta, Egypt
5. Hepatology, Gastroenterology & infectious diseases Department, Faculty of Medicine, Kafrelsheikh University, Kafr ash Shaykh, Egypt
6. Tropical Medicine Department, Faculty of Medicine, Tanta University, Tanta, Egypt