Peer-reviewed veterinary case report
How H3N2 canine flu with H1N1 gene spreads in dogs and ferrets
By Moon, H et al.·Published in Epidemiology and infection·2015·Research Unit, South Korea·View original on PubMed →
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Original publication title: H3N2 canine influenza virus with the matrix gene from the pandemic A/H1N1 virus: infection dynamics in dogs and ferrets.
- Species:
- dog
Plain-English summary
A group of dogs infected with a new strain of canine influenza virus (CIV) showed typical signs of respiratory illness, such as coughing and sneezing. This strain, which is a mix of the classic H3N2 CIV and a pandemic flu virus, was found to spread easily among dogs and ferrets during testing. The infected dogs shed the virus and were able to transmit it to others through direct contact. Understanding how this new virus behaves can help veterinarians manage and treat respiratory infections in dogs more effectively.
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Abstract
After an outbreak of pandemic influenza A/H1N1 (pH1N1) virus, we had previously reported the emergence of a recombinant canine influenza virus (CIV) between the pH1N1 virus and the classic H3N2 CIV. Our ongoing routine surveillance isolated another reassortant H3N2 CIV carrying the matrix gene of the pH1N1 virus from 2012. The infection dynamics of this H3N2 CIV variant (CIV/H3N2mv) were investigated in dogs and ferrets via experimental infection and transmission. The CIV/H3N2mv-infected dogs and ferrets produced typical symptoms of respiratory disease, virus shedding, seroconversion, and direct-contact transmissions. Although indirect exposure was not presented for ferrets, CIV/H3N2mv presented higher viral replication in MDCK cells and more efficient transmission was observed in ferrets compared to classic CIV H3N2. This study demonstrates the effect of reassortment of the M gene of pH1N1 in CIV H3N2.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/24977303/