1. Department of Biochemistry, Pharmacy, Minia University, Minia, Egypt
2. Department of Microbiology, Pharmacy, Minia University, Minia, Egypt
3. Department of Endemic medicine, Medicine, Minia University, Minia, Egypt
4. Independant biostatistics consultant, High Institute of Public Health, Alexandria, Egypt
5. Department of Pharmacology and Toxicology, Pharmacy, Alexandria University, Alexandria, Egypt