Elahe Tajbakhsh1*, Gholamreza Nikbakht Borujeni2, Hassan Momtazan3 and Nour Amirmozafari4
1Department of Basic Science, Science and Research Branch, Islamic Azad University Tehran .Tehran Iran.
2Departemant of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Gholamreza Nikbakht Borujeni, Tehran Iran.
3Department of Microbiology, Faculty of Veterinary Medicine, Islamic Azad University of Shahrekord, Hassan Momtaz, Shahrekord-Iran.
4Iran University of Medical Sciences, Nour amirmozafari, Tehran, Iran.
