Article ; Online: Genetic characterization of infectious bronchitis viruses in Thailand, 2014-2016: identification of a novel recombinant variant.
2020 Volume 99, Issue 4, Page(s) 1888–1895
Abstract: Infectious bronchitis (IB) causes severe economic losses to the poultry industry worldwide owing to frequent emergence of novel infectious bronchitis virus (IBV) variants, which potentially affect the effectiveness of the currently used IBV vaccine. ... ...
| Abstract | Infectious bronchitis (IB) causes severe economic losses to the poultry industry worldwide owing to frequent emergence of novel infectious bronchitis virus (IBV) variants, which potentially affect the effectiveness of the currently used IBV vaccine. Therefore, continuous monitoring of IBV genotypes and lineages recently circulating in chickens worldwide is essential. In this study, we characterized the complete S1 gene from 120 IBVs circulating in chickens in Thailand from 2014 to 2016. Phylogenetic analysis of the complete S1 gene of 120 Thai IBVs revealed that the 2014-2016 Thai IBVs were divided into 3 lineages (GI-1, GI-13, and GI-19) and a novel IBV variant. Our results also showed that GI-19 lineage has become the predominant lineage of IBV circulating in chicken flocks in Thailand from 2014 to 2016. It is interesting to note that a novel IBV variant, which was genetically different from the established IBV lineages, was identified in this study. The recombination analysis demonstrated that this novel IBV variant was a recombinant virus, which was originated from the GI-19 and GI-13 lineage viruses. In conclusion, our data demonstrate the circulation of different lineages of IBV and the presence of a novel recombinant IBV variant in chicken flocks in Thailand. This study highlights the high genetic diversity and continued evolution of IBVs in chickens in Thailand, and the importance of continued IBV surveillance for effective control and prevention of IB. |
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| MeSH term(s) | Animals ; Chickens ; Coronavirus Infections/veterinary ; Coronavirus Infections/virology ; Genotype ; Infectious bronchitis virus/genetics ; Poultry Diseases/virology ; Sequence Analysis, RNA/veterinary ; Spike Glycoprotein, Coronavirus/genetics ; Spike Glycoprotein, Coronavirus/metabolism ; Thailand |
| Chemical Substances | Spike Glycoprotein, Coronavirus |
| Keywords | covid19 |
| Language | English |
| Publishing date | 2020-02-05 |
| Publishing country | England |
| Document type | Journal Article |
| ZDB-ID | 242586-5 |
| ISSN | 1525-3171 ; 0032-5791 |
| ISSN (online) | 1525-3171 |
| ISSN | 0032-5791 |
| DOI | 10.1016/j.psj.2019.11.044 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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