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Article

Continued use of IBV 793B vaccine needs reassessment after its withdrawal led to the genotype's disappearance.

Vaccine - 28 Nov 2014

Franzo Giovanni, Naylor Clive John, Lupini Caterina, Drigo Michele, Catelli Elena, Listorti Valeria, Pesente Patrizia, Giovanardi Davide, Morandini Emilio, Cecchinato Mattia

Abstract excerpt

Over a period of almost two years, broilers chickens on several hundred Italian farms, were monitored for infectious bronchitis virus. Detections were genotyped using a hypervariable region of the gene coding for the S1 segment of the spike protein. A range of genotypes were detected which comprised QX, Q1, Mass, D274 and 793B. Sequences of 793B viruses detected in chickens, vaccinated with either of the two...

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Identifiers

PMID: 25446828
DOI: 10.1016/j.vaccine.2014.10.006
PMCID: PMC7172084

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 6 Sept 2026. Manifest publication-graph-cohort-2026-09-06.1.

Source receipt: pubmed, retrieved 6 Sept 2026.

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