Title of article :
Detection of the Chinese Genotype of Infectious Bronchitis Virus (QX-type) in Iran
Author/Authors :
Bozorgmehri-Fard ، Mohammad Hassan Department of Clinical Science - Faculty of Veterinary Medicine - Islamic Azad University, Science and Research Branch , Charkhkar ، Saied Department of Clinical Science - Faculty of Veterinary Medicine - Islamic Azad University, Science and Research Branch , Hosseini ، Hossein Department of Clinical Sciences - Faculty of Veterinary Medicine - Islamic Azad University, Karaj Branch
Abstract :
Case Report: Recently a 20-day-old layer flock with mortality has been submitted to the PCR Lab. Infectious Bronchitis Virus (IBV) has been detected in the clinical samples. Results: A phylogenetic tree based on a partial S1 gene sequence showed Iranian IBV variant located in LX4-type cluster. This cluster include all QXIBV-type detected in China and European countries. The highest sequence homology ( 99%) was found with that of a group of the Chinese QX but less similarity with European QX-like ( 95%) and another Chinese QXIBV ( 94%). Conclusion: Comparison of Nucleotides sequence with H120 and 4/91 IB vaccines shows only 76.9 and 79.7 identity, respectively.
Keywords :
Infectious Bronchitis Virus (IBV) , Clinical Samples , Phylogenetic tree
Journal title :
Iranian Journal of Virology
Journal title :
Iranian Journal of Virology
