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Emergence and Containment of Canine Influenza Virus A(H3N2), Ontario, Canada, 2017-2018.

Authors
  • Weese, J Scott
  • Anderson, Maureen E C
  • Berhane, Yohannes
  • Doyle, Kathleen F
  • Leutenegger, Christian
  • Chan, Roxanne
  • Chiunti, Michelle
  • Marchildon, Katerina
  • Dumouchelle, Nicole
  • DeGelder, Theresa
  • Murison, Kiera
  • Filejksi, Catherine
  • Ojkic, Davor
Type
Published Article
Journal
Emerging Infectious Diseases
Publisher
Centers For Disease Control and Prevention
Publication Date
Oct 01, 2019
Volume
25
Issue
10
Pages
1810–1816
Identifiers
DOI: 10.3201/eid2510.190196
PMID: 31538556
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

Canine influenza virus (CIV) A(H3N2) was identified in 104 dogs in Ontario, Canada, during December 28, 2017-October 30, 2018, in distinct epidemiologic clusters. High morbidity rates occurred within groups of dogs, and kennels and a veterinary clinic were identified as foci of infection. Death attributable to CIV infection occurred in 2 (2%) of 104 diagnosed cases. A combination of testing of suspected cases, contact tracing and testing, and 28-day isolation of infected dogs was used, and CIV transmission was contained in each outbreak. Dogs recently imported from Asia were implicated as the source of infection. CIV H3N2 spread rapidly within groups in this immunologically naive population; however, containment measures were apparently effective, demonstrating the potential value of prompt diagnosis and implementation of CIV control measures.

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