1. Division of Microbiology, Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
2. Center for Water Quality Research (CWQR), Institute for Environmental Research (IER), Tehran University of Medical Sciences, Tehran, Iran
3. Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
4. Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran, Iran
5. Department of Food Microbiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran