E-ISSN 2536-9520 | ISSN 1110-2047
 

Original Research (Original Article) 


Molecular Characterization of H9N2 Avian Influenza Viruses Isolated from Commercial Broiler Chickens in Egypt during 2014-2015

Hatem S. Abd El-Hamid, Hany F. Ellakany, Ahmed R. Elbestawy, Ahmed R. Gado.

Abstract
Avian influenza virus H9N2 is a panzootic pathogen that affects poultry causing mild to moderate respiratory distress but has been associated with high morbidity and considerable mortality. In this study, one hundred and twenty coloacal and tracheal swabs and organs (trachea, lung and spleen) were collected from broiler chicken flocks in 8 Egyptian governorates from summer 2014 to spring 2015. Results of RT-PCR revealed that 36 flocks were positive out of 120 flocks for H9N2 (30%) with seasonal distribution as follow: 0.8% in summer of 2014, 5.8% in Autumn of 2014, 19.2% in winter of 2014 and 4.1% in Spring of 2015. Sequencing of HA gene and phylogenetic analysis of 7 selected H9N2 isolates representative of different governorates indicated that all isolates belong to G1-like lineage and are closely related to other Middle East H9N2 isolates.

Key words: H9N2, broilers, AIV, phylogenetic tree


 
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Pubmed Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Ahmed R. Elbestawy, Ahmed R. Gado. Molecular Characterization of H9N2 Avian Influenza Viruses Isolated from Commercial Broiler Chickens in Egypt during 2014-2015. AJVS. 2018; 56(2): 54-61. doi:10.5455/ajvs.220473


Web Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Ahmed R. Elbestawy, Ahmed R. Gado. Molecular Characterization of H9N2 Avian Influenza Viruses Isolated from Commercial Broiler Chickens in Egypt during 2014-2015. http://www.alexjvs.com/?mno=220473 [Access: March 22, 2019]. doi:10.5455/ajvs.220473


AMA (American Medical Association) Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Ahmed R. Elbestawy, Ahmed R. Gado. Molecular Characterization of H9N2 Avian Influenza Viruses Isolated from Commercial Broiler Chickens in Egypt during 2014-2015. AJVS. 2018; 56(2): 54-61. doi:10.5455/ajvs.220473



Vancouver/ICMJE Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Ahmed R. Elbestawy, Ahmed R. Gado. Molecular Characterization of H9N2 Avian Influenza Viruses Isolated from Commercial Broiler Chickens in Egypt during 2014-2015. AJVS. (2018), [cited March 22, 2019]; 56(2): 54-61. doi:10.5455/ajvs.220473



Harvard Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Ahmed R. Elbestawy, Ahmed R. Gado (2018) Molecular Characterization of H9N2 Avian Influenza Viruses Isolated from Commercial Broiler Chickens in Egypt during 2014-2015. AJVS, 56 (2), 54-61. doi:10.5455/ajvs.220473



Turabian Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Ahmed R. Elbestawy, Ahmed R. Gado. 2018. Molecular Characterization of H9N2 Avian Influenza Viruses Isolated from Commercial Broiler Chickens in Egypt during 2014-2015. Alexandria Journal of Veterinary Sciences, 56 (2), 54-61. doi:10.5455/ajvs.220473



Chicago Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Ahmed R. Elbestawy, Ahmed R. Gado. "Molecular Characterization of H9N2 Avian Influenza Viruses Isolated from Commercial Broiler Chickens in Egypt during 2014-2015." Alexandria Journal of Veterinary Sciences 56 (2018), 54-61. doi:10.5455/ajvs.220473



MLA (The Modern Language Association) Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Ahmed R. Elbestawy, Ahmed R. Gado. "Molecular Characterization of H9N2 Avian Influenza Viruses Isolated from Commercial Broiler Chickens in Egypt during 2014-2015." Alexandria Journal of Veterinary Sciences 56.2 (2018), 54-61. Print. doi:10.5455/ajvs.220473



APA (American Psychological Association) Style

Hatem S. Abd El-Hamid, Hany F. Ellakany, Ahmed R. Elbestawy, Ahmed R. Gado (2018) Molecular Characterization of H9N2 Avian Influenza Viruses Isolated from Commercial Broiler Chickens in Egypt during 2014-2015. Alexandria Journal of Veterinary Sciences, 56 (2), 54-61. doi:10.5455/ajvs.220473





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