S. Vatandour1*, M. Bozorgmehrifard2, H. Shoushtari3, S. Charkhkar4 and S. Bakhtiari5
1Department of Poultry Disease,Science and Research Branch, Islamic Azad University, Tehran, Iran.
2Division of Avian Disease, Tehran University, Iran.
3Division of Avian Disease and Research, Razi Vaccine and Serum Research Institute, Karaj, Tehran, Iran.
4Division of Avian Disease, Islamic Azad University, Science and Research Branch, Tehran, Iran.
5Iran Veterinary Organization, Tehran General Office, Tehran, Iran.
