1. Department of Laboratory Sciences, Central Veterinary Laboratory, Iranian Veterinary Organization, Hamadan, Iran.
2. Department of Pathobiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran.
3. Department of Molecular Biology, Pasteur Institute of Iran, Tehran, Iran.
4. Department of Molecular Biology, National Veterinary Reference Laboratory, Iranian Veterinary Organization, Tehran, Iran.