Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia. Electronic address: smkabrah@uqu.edu.sa. Laboratory Medicine Department, Faculty of Applied Medical Sciences, Umm Al-Qura University, Makkah, Saudi Arabia. Electronic address: amkabrah@uqu.edu.sa. Pathology Department, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia. Electronic address: aflemban@uqu.edu.sa. Visiting Scholar with the School of Public Health, Department of Social and Preventive Medicine, University of Montreal, Montréal, Canada; Quality Improvement and Infection Control Unit, Ministry of Health, Gaza, Palestine. Electronic address: samer_516@hotmail.com.