1. Department of Microbiology, Immunology, and Infectious Diseases, College of Medicine & Medical Sciences, Arabian Gulf University, Manama P.O. Box 26671, Bahrain
2. Department of Pathology, Microbiology Section, Al- Salmaniya Medical Complex, Manama P.O. Box 12, Bahrain
3. Department of Pathology, Microbiology Section, Bahrain Defense Force Hospital, West Riffa P.O. Box 28743, Bahrain