Peer-reviewed veterinary case report
How canine influenza virus spreads between dogs with respiratory
By Jirjis, Faris F et al.·Published in Veterinary microbiology·2010·Intervet/Schering-Plough Animal Health, United States·View original on PubMed →
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Original publication title: Transmission of canine influenza virus (H3N8) among susceptible dogs.
- Species:
- dog
Plain-English summary
A group of dogs was studied to see how easily canine influenza virus (CIV) spreads among them. Four dogs that were infected with CIV were placed with eight healthy dogs, and it was found that the virus quickly spread to the healthy dogs through direct contact. Both groups showed similar symptoms, including respiratory issues and pneumonia. In fact, all the infected dogs and 75% of the healthy dogs ended up shedding the virus in their nasal secretions. This highlights the importance of keeping sick dogs away from healthy ones to prevent the spread of this respiratory disease.
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Abstract
Canine influenza virus (CIV) is an emerging pathogen that causes acute respiratory disease in dogs. As with any communicable disease, dog-to-dog transmission of CIV occurs when infected dogs come in contact with other susceptible dogs. We demonstrate that CIV transmission occurs readily from CIV-infected dogs to susceptible dogs following co-mingling. Four experimentally infected dogs were co-mingled with a group of eight CIV-negative dogs at 1 day post-infection and both groups were observed for CIV-associated respiratory disease. The onset of clinical signs, virus shedding, seroconversion, and appearance of lung lesions were observed earlier in experimentally infected dogs; however, the severity of the clinical signs and lung lesions were very similar in both groups. One hundred percent of the experimentally infected dogs and 75% of the contact-exposed dogs excreted virus in their nasal secretions. Additionally, 100% of experimentally infected dogs and 75% of the contact-exposed dogs exhibited varying degrees of pneumonia. Our study results demonstrate that CIV spreads readily from infected dogs to other susceptible dogs through direct contact.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/20347235/