Phylogenetic study-based hemagglutinin (HA) gene of highly pathogenic avian influenza virus (H5N1) detected from backyard chickens in Iran, 2015.
Highly pathogenic avian influenza (HPAI) viruses of the H5N1 subtype have been diversified into multiple phylogenetic clades over the past decade and are highly genetically variable. In June 2015, one outbreak of HPAI H5N1 in backyard chickens was reported in the Nogardan village of the Mazandaran Province. Tracheal tissues were taken from the dead domestic chickens (n = 10) and processed for RT-PCR. The positive samples (n = 10) were characterized as HPAI H5N1 by sequencing analysis for the hemagglutinin and neuraminidase genes. Phylogenetic analysis of the samples revealed that the viruses belonged to clade 2.3.2.1c, and cluster with the HPAI H5N1 viruses isolated from different avian species in Bulgaria, Romania, and Nigeria in 2015. They were not closely related to other H5N1 isolates detected in previous years in Iran. Our study provides new insights into the evolution and genesis of H5N1 influenza in Iran and has important implications for targeting surveillance efforts to rapidly identify the spread of the virus into and within Iran.
Iranian Veterinary Organization, Tehran, Iran.
Syed Ali
SA
Ghafouri
Department of Microbiology and Immunology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran. arashghalyanchi@gmail.com.
Arash Ghalyanchi
AG
Langeroudi
Iranian Veterinary Organization, Tehran, Iran.
Hossein
H
Maghsoudloo
Iranian Veterinary Organization, Tehran, Iran.
Farshad
F
Tehrani
Iranian Veterinary Organization, Tehran, Iran.
Reza
R
Khaltabadifarahani
Iranian Veterinary Organization, Tehran, Iran.
Hamed
H
Abdollahi
Razi Vaccine and Serum Research Institute, Karaj, Iran.
Mohammad Hossein
MH
Fallah
D000818:Animals; D002645:Chickens; D019143:Evolution, Molecular; D005814:Genes, Viral; D005843:Geography; D019267:Hemagglutinin Glycoproteins, Influenza Virus / Q000235:genetics*; D053124:Influenza A Virus, H5N1 Subtype / Q000145:classification* / Q000235:genetics*; D007492:Iran; D010802:Phylogeny; D011201:Poultry Diseases / Q000821:virology*; D017422:Sequence Analysis, DNA
D019267:Hemagglutinin Glycoproteins, Influenza Virus
Avian influenza; H5N1; Iran; Phylogenetic analysis
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