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Thirty-Five Years of IBV Evolution in Chile Reveals a Novel Lineage and Evidence of Vaccine-Driven Recombination

13 Aug 2025

Abstract excerpt

Infectious bronchitis virus (IBV) remains a major threat to poultry health worldwide due to frequent genetic changes mainly driven by recombination and limited cross-protection between genotypes. In this study, we analyzed IBV strains collected from clinical outbreaks in Chile between 1986 and 2021 to assess the long-term impacts of live-attenuated vaccines (Massachusetts and 4/91) on viral evolution....

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PMID: 40872824
DOI: 10.3390/v17081111

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