1. Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
2. Department of Epidemiology and Biostatistics, Research Centre for Emerging & Reemerging infectious diseases, Pasteur Institute of Iran, Tehran, Iran
3. Department of Parasitology, Pasteur Institute of Iran, Tehran, Iran
4. National Reference Laboratory for Plague, Tularemia & Q fever, Research Centre for Emerging & Reemerging Infectious Diseases, Pasteur Institute of Iran, Akanlu, Kabudar Ahang, Hamadan, Iran