Epidemiology and characterization of avian infectious bronchitis virus strains circulating in southern China during the period from 2013–2015

Abstract Two hundred and six strains of avian infectious bronchitis virus (IBV) were isolated from chickens showing signs of disease in southern China during the period from 2013–2015. The nucleotide and amino acid sequences from the isolated field strains were compared to 42 published references. N...

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Autores principales:	Keyu Feng, Feng Wang, Yu Xue, Qingfeng Zhou, Feng Chen, Yingzuo Bi, Qingmei Xie
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d41cd8a82aec41aaae445884a231b5fa
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spelling	oai:doaj.org-article:d41cd8a82aec41aaae445884a231b5fa2021-12-02T15:05:54ZEpidemiology and characterization of avian infectious bronchitis virus strains circulating in southern China during the period from 2013–201510.1038/s41598-017-06987-22045-2322https://doaj.org/article/d41cd8a82aec41aaae445884a231b5fa2017-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-06987-2https://doaj.org/toc/2045-2322Abstract Two hundred and six strains of avian infectious bronchitis virus (IBV) were isolated from chickens showing signs of disease in southern China during the period from 2013–2015. The nucleotide and amino acid sequences from the isolated field strains were compared to 42 published references. Nucleotide homologies ranged from 63.1–99.9% and amino acid homologies ranging from 60.2–100%. At least seven IBV genotypes were co-circulating in commercial chicken farms in southern China. The IBV isolates were genetically diverse and underwent continuing evolution. The QX-type, TW I-type, and 4/91-type were the most common genotypes during the three-year observation period and accounted for 88.8% of the isolated strains. Notably, the prevalence of the TW I-type strains has been increasing in recent years and has become the most common genotype in China. The emergence of variant IBV strains can be attributed to recombination. Serologic analysis and antigenic 3D cartography of 4 reference and 14 field isolated strains indicated the surveyed IBVs had diverse serology types and that the serotype of the isolated QX-type and TW I-type strains was distinct from the vaccines strains. Therefore, long-term continuing surveillance is necessary for IBV prevention and control.Keyu FengFeng WangYu XueQingfeng ZhouFeng ChenYingzuo BiQingmei XieNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-11 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Keyu Feng Feng Wang Yu Xue Qingfeng Zhou Feng Chen Yingzuo Bi Qingmei Xie Epidemiology and characterization of avian infectious bronchitis virus strains circulating in southern China during the period from 2013–2015
description	Abstract Two hundred and six strains of avian infectious bronchitis virus (IBV) were isolated from chickens showing signs of disease in southern China during the period from 2013–2015. The nucleotide and amino acid sequences from the isolated field strains were compared to 42 published references. Nucleotide homologies ranged from 63.1–99.9% and amino acid homologies ranging from 60.2–100%. At least seven IBV genotypes were co-circulating in commercial chicken farms in southern China. The IBV isolates were genetically diverse and underwent continuing evolution. The QX-type, TW I-type, and 4/91-type were the most common genotypes during the three-year observation period and accounted for 88.8% of the isolated strains. Notably, the prevalence of the TW I-type strains has been increasing in recent years and has become the most common genotype in China. The emergence of variant IBV strains can be attributed to recombination. Serologic analysis and antigenic 3D cartography of 4 reference and 14 field isolated strains indicated the surveyed IBVs had diverse serology types and that the serotype of the isolated QX-type and TW I-type strains was distinct from the vaccines strains. Therefore, long-term continuing surveillance is necessary for IBV prevention and control.
format	article
author	Keyu Feng Feng Wang Yu Xue Qingfeng Zhou Feng Chen Yingzuo Bi Qingmei Xie
author_facet	Keyu Feng Feng Wang Yu Xue Qingfeng Zhou Feng Chen Yingzuo Bi Qingmei Xie
author_sort	Keyu Feng
title	Epidemiology and characterization of avian infectious bronchitis virus strains circulating in southern China during the period from 2013–2015
title_short	Epidemiology and characterization of avian infectious bronchitis virus strains circulating in southern China during the period from 2013–2015
title_full	Epidemiology and characterization of avian infectious bronchitis virus strains circulating in southern China during the period from 2013–2015
title_fullStr	Epidemiology and characterization of avian infectious bronchitis virus strains circulating in southern China during the period from 2013–2015
title_full_unstemmed	Epidemiology and characterization of avian infectious bronchitis virus strains circulating in southern China during the period from 2013–2015
title_sort	epidemiology and characterization of avian infectious bronchitis virus strains circulating in southern china during the period from 2013–2015
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/d41cd8a82aec41aaae445884a231b5fa
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Epidemiology and characterization of avian infectious bronchitis virus strains circulating in southern China during the period from 2013–2015

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