Genotyping of infectious bronchitis virus in Canada.

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  • Author(s): Ojkic D;Ojkic D; Susta L; Susta L; Martin E; Martin E
  • Source:
    Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc [J Vet Diagn Invest] 2024 Nov; Vol. 36 (6), pp. 804-808. Date of Electronic Publication: 2024 Aug 06.
  • Publication Type:
    Journal Article
  • Language:
    English
  • Additional Information
    • Source:
      Publisher: Sage Country of Publication: United States NLM ID: 9011490 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1943-4936 (Electronic) Linking ISSN: 10406387 NLM ISO Abbreviation: J Vet Diagn Invest Subsets: MEDLINE
    • Publication Information:
      Publication: 2011-: Thousand Oaks, CA : Sage
      Original Publication: 1989-2004 : Columbia, MO : American Association of Veterinary Laboratory Diagnosticians
    • Subject Terms:
      Infectious bronchitis virus*/genetics ; Infectious bronchitis virus*/isolation & purification ; Infectious bronchitis virus*/classification ; Coronavirus Infections*/veterinary ; Coronavirus Infections*/virology ; Coronavirus Infections*/epidemiology ; Poultry Diseases*/virology ; Poultry Diseases*/epidemiology ; Chickens*/virology ; Genotype* ; Phylogeny*; Animals ; Canada/epidemiology ; Disease Outbreaks/veterinary ; Spike Glycoprotein, Coronavirus/genetics
    • Abstract:
      From 2014-2023, infectious bronchitis virus (IBV) was detected in 6,589 samples from Canada, and partial nucleotide (nt) sequences of the IBV spike protein ( S ) gene were determined for 1,678 samples. Based on their S gene nt sequence identities and origin, Canadian IBVs could be classified into 4 groups: 1) 50.3% were variant viruses related to strains described in the United States; 2) 45.6% were vaccine-like viruses; 3) 2.1% were Eurasian viruses; 4) 2.0% were Canadian variants. Outbreaks with IBVs related to strains CAL1734/04, 4/91, and DMV/1639/11 were often associated with more severe disease in all chicken commodity groups. With the emergence of numerous IBV strains, the severity of infection and number of affected flocks increased. Outbreaks with various IBV strains overlapped in their emergence, peaked, and regressed, but the introduction of DMV/1639/11 has resulted in a continuous field challenge since its first detection in 2015.
      Competing Interests: Declaration of conflicting interestsWe declare no potential conflicts of interest with respect to the research, authorship, and/or publication of this article.
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    • Contributed Indexing:
      Keywords: genotyping; infectious bronchitis virus; spike protein gene; variants
    • Accession Number:
      0 (Spike Glycoprotein, Coronavirus)
    • Publication Date:
      Date Created: 20240807 Date Completed: 20241025 Latest Revision: 20241103
    • Publication Date:
      20250114
    • Accession Number:
      PMC11529142
    • Accession Number:
      10.1177/10406387241265955
    • Accession Number:
      39108146