ArticlePoultry science2025
Genetic and pathogenic characteristics of a novel recombinant GI-19 infectious bronchitis virus strain isolated from northeastern China.
Article in Poultry science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Emergence of infectious bronchitis virus genotype GI-24 and GI-16 along with predominant circulation of genotype GI-1 in commercial poultry in Bangladesh.Poultry science · 2026Article
- Recombination with a vaccine strain drives the evolution of a more virulent phenotype in avian infectious bronchitis virus.Poultry science · 2026Article
- Divergent tissue tropism and pathogenicity of novel recombinant GI-19 and GI-22 infectious bronchitis virus strains.Poultry science · 2026Article
- Article
- Vaccination-driven evolution of infectious bronchitis virus in Korea: implication for the control of other coronavirus infections.Frontiers in veterinary science · 2026Review
- Coinfection with infectious bronchitis virus exacerbates the pathogenicity ofFrontiers in veterinary science · 2026Article
- Dominance of the GI-19 genotype and genomic characterization of the S1 gene in avian infectious bronchitis virus from 2020 to 2024.Frontiers in cellular and infection microbiology · 2025Article
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Authors and funding
12 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Since the 1980s, despite vaccination, the infectious bronchitis virus (IBV) infection rate in commercial broilers and layers in China has continued to rise significantly, causing substantial economic losses to the poultry industry. In this study, an IBV strain was isolated from a layer farm in northeast China and named CK/CH/LN/2302. The whole genome sequence analysis revealed that CK/CH/LN/2302 shared a high level of homology (96.41 %) with the GI-19 strain SC/SDL/19. The phylogenetic tree based on the S1 gene indicates that CK/CH/LN/2302 belongs to the GI-19 lineage. Notably, recombination analysis using RDP5 and SimPlot software suggested that the GI-19 strain and a 4/91-like strain likely contributed to four recombination events in the CK/CH/LN/2302 genome. Phylogenetic analysis of these four regions further supported this conclusion. Protein structure analysis revealed that most of the nonstructural protein 2 (nsp2), main protease (M
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