1. Department of Microbiology, Faculty of Medicine, Kuwait University, P.O. Box 24923, Kuwait 13110, Kuwait
2. Department of Obstetrics & Gynecology, Faculty of Medicine, Kuwait University, P.O. Box 24923, Kuwait 13110, Kuwait
3. Department of Mathematics & Biology, Gulf University for Science and Technology, Mubarak Al-Abdullah Area, West Mishref, Hawalli 32093, Kuwait