1. Drug Applied Research Center , Tabriz University of Medical Sciences , Tabriz , Islamic Republic of Iran
2. Department of Pathobiology , Faculty of Veterinary Medicine, University of Tabriz , Tabriz , Islamic Republic of Iran
3. Department of Pathobiology, Faculty of Veterinary Medicine , University of Tabriz , P.O. Box: 71345-1731 , Tabriz , Islamic Republic of Iran , Tel.: +98-4136378743, Fax: +98-4136378744
4. Department of Basic Sciences , Faculty of Veterinary Medicine, University of Tabriz , Tabriz , Islamic Republic of Iran
5. Center for Infectious Diseases and International Health, Windeyer Institute for Medical Sciences, University College London , London , UK