Article

Emergence of Novel QX-Type IBV in China: Molecular Insights into Unique S Protein Cleavage Sites, Antigenic Drift, and Enhanced Pathogenicity (2025)

2025-11-13

Abstract excerpt

<title>Abstract</title> <p>Avian infectious bronchitis virus (IBV) is a major pathogen impacting the global poultry industry. The QX genotype (GI-19 lineage) of IBV has rapidly spread worldwide and is now the dominant genotype in Asia and Europe. In this study, three QX-type field strains (JS/773, JS/774, and SD/783) were isolated from diseased chicken flocks in eastern China, which had been vaccinated with IBV l...

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Literature Corpus work: 16af77f3-fb4d-568c-b9f7-48fc18e6aed6
DOI: 10.21203/rs.3.rs-7926999/v1

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