Key result
Over 11 years of molecular typing, 1,523 IBV isolates were identified, with the Ark-DPI strain being the most frequent (23% to 65% annually) and 82 different variant viruses detected.
Observational (n=1,523)
Yes
Molecular typing over 11 years demonstrates that IBV variant viruses consistently circulate in commercial poultry and undergo genetic drift, highlighting the need for continuous monitoring.
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Sustained IBV surveillance may be warranted in poultry; leaves open optimal vaccine strain selection amid ongoing drift.
Jackwood et al. (2005) conducted an observational in Infectious bronchitis virus (IBV) infection (n=1,523). Molecular typing using RT-PCR and RFLP was evaluated on Identification and frequency of IBV serotypes and variants. Over 11 years of molecular typing, 1,523 IBV isolates were identified, with the Ark-DPI strain being the most frequent (23% to 65% annually) and 82 different variant viruses detected.
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