1. Department of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
2. Department of Pathology, King Abdulaziz University, Jeddah, Saudi Arabia
3. Clinical and Molecular Microbiology Laboratory, King Abdulaziz University Hospital, Jeddah, Saudi Arabia
4. Department of Medical Microbiology and Immunology, Faculty of Medicine, Zagazig University, Egypt