Detection of the Chinese Genotype of Infectious Bronchitis Virus (QX-type) in Iran | Zendy

Mohammad Hassan Bozorgmehri-Fard | Zendy; Saied Charkhkar | Zendy; Hossein Hosseini | Zendy

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Detection of the Chinese Genotype of Infectious Bronchitis Virus (QX-type) in Iran

Author(s) -

Mohammad Hassan Bozorgmehri-Fard,

Saied Charkhkar,

Hossein Hosseini

Publication year - 2013

Publication title -

iranian journal of virology

Language(s) - English

Resource type - Journals

eISSN - 2588-5030

pISSN - 1735-5680

DOI - 10.21859/isv.7.1.2.57

Subject(s) - infectious bronchitis virus , phylogenetic tree , virology , biology , sequence homology , genotype , sequence analysis , gene , virus , flock , genetics , peptide sequence , ecology

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.

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