1. Division of Microbiology, Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
2. Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran
3. Department of Virology, Tehran University of Medical Sciences, Tehran, Iran
4. Research Center for Immunodeficiencies, Tehran University of Medical Sciences, Tehran, Iran
5. Department of Microbiology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
6. Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran