AI Article Synopsis

  • Dogs infected with human seasonal H3N2 and pandemic H1N1 (2009) influenza viruses showed nasal shedding and developed antibodies, while those infected with influenza B did not.
  • Transmission of H3N2 was observed between dogs, as naïve dogs exhibited similar nasal shedding and antibody development after contact with infected dogs.
  • The study indicates that dogs can serve as hosts for both human seasonal H3N2 and pandemic H1N1 viruses, with serological evidence of these infections found in dog samples collected from 2010 to 2011.

Article Abstract

We investigated the infectivity and transmissibility of the human seasonal H3N2, pandemic (pdm) H1N1 (2009) and B influenza viruses in dogs. Dogs inoculated with human seasonal H3N2 and pdm H1N1 influenza viruses exhibited nasal shedding and were seroconverted against the viruses; this did not occur in the influenza B virus-inoculated dogs. Transmission of human H3N2 virus between dogs was demonstrated by observing nasal shedding and seroconversion in naïve dogs after contact with inoculated dogs. The seroprevalence study offered evidence of human H3N2 infection occurring in dogs since 2008. Furthermore, serological evidence of pdm H1N1 influenza virus infection alone and in combination with canine H3N2 virus was found in the serum samples collected from field dogs during 2010 and 2011. Our results suggest that dogs may be hosts for human seasonal H3N2 and pdm H1N1 influenza viruses.

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http://dx.doi.org/10.1099/vir.0.070821-0DOI Listing

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