1. Department of Microbiology and Immunology, Faculty of Pharmacy, Minia University, Minia, Egypt
2. Department of Microbiology & Immunology, Faculty of Pharmacy, Deraya University, Minia, Egypt
3. General Surgery and Laparoscopic surgery, Faculty of Medicine, Minia University, Minia, Egypt
4. Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt
5. Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, USA