Differentiation of field isolates and vaccine strains of infectious laryngotracheitis virus by DNA sequencing

Majid Sadeghi¹*, Mohammad Hasan Bozorgemehrifard², Hadi keyvanfar³, Hassan Momtaz⁴, Abdolhamid Shooshtari⁵ and Saied Charkhkar⁶

¹Islamic Azad University, Science and Research Branch, Tehran, Iran.

²Division of poultry disease, Islamic Azad University, Science and Research Branch, Tehran, Iran.

³Division of Microbiology, Islamic Azad University, Science and Research Branch, Tehran, Iran.

⁴Department of Microbiology, Faculty of Veterinary Medicine, Islamic Azad University, Shahrekord branch, Shahrekord, Iran.

⁵Division of poultry disease and research, Razi vaccine and serum research institute, Karaj, Tehran, Iran.

⁶Department of poultry disease, Islamic Azad University, Science and Research Branch, Tehran, Iran.