1. King Saud University, College of Applied Medical Sciences, Department of Clinical Laboratory Sciences, PO Box 10219, Riyadh, Saudi Arabia 11433
2. Assiut University, Faculty of Medicine, Department of Microbiology and Immunology, Al-Shaheed St, Assiut, Egypt 71526
3. Al-Mustansiriya University, College of Science, Department of Biology, Branch of Biotechnology, Palestine St, Baghdad, Iraq