Molecular surveillance of GI-19 lineage infectious bronchitis virus in China: divergent evolution and efficacy assessment of QXL87 vaccine against heterologous clades.

BMC Vet Res · 2025 · PMC12903415 · PMID 41291746

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a significant trendno p-value reported

In the course of long-term monitoring, we have realized that the GI-19 lineage of IBV has shown a significant trend of evolution with potential pathogenic and antigenic changes, especially after 2018.

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