Peer-reviewed veterinary case report
Canine respiratory coronavirus introduced to Swedish dogs around 2010
By Wille, Michelle et al.·Published in Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics in infectious diseases·2020·Department of Medical Biochemistry and Microbiology·View original on PubMed →
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Original publication title: Evolutionary genetics of canine respiratory coronavirus and recent introduction into Swedish dogs.
- Species:
- dog
Plain-English summary
A group of 88 dogs in Sweden showing signs of upper respiratory infection were tested for canine respiratory coronavirus (CRCoV), and 13 of them were found to be positive. This virus is known to cause respiratory issues in dogs, similar to a cold in humans. The study found that the CRCoV in these dogs was very similar, suggesting it was introduced into the Swedish dog population around 2010 and has not changed much since then. This means that the virus is likely spreading among dogs in Sweden without significant variation.
People also search for: dog coughing symptoms · canine respiratory coronavirus treatment · upper respiratory infection in dogs
Abstract
Canine respiratory coronavirus (CRCoV) has been identified as a causative agent of canine infectious respiratory disease, an upper respiratory infection affecting dogs. The epidemiology is currently opaque, with an unclear understanding of global prevalence, pathology, and genetic characteristics. In this study, Swedish privately-owned dogs with characteristic signs of canine infectious respiratory disease (n = 88) were screened for CRCoV and 13 positive samples (14.7%, 8.4-23.7% [95% confidence interval (CI)]) were further sequenced. Sequenced Swedish CRCoV isolates were highly similar despite being detected in dogs living in geographically distant locations and sampled across 3 years (2013-2015). This is due to a single introduction into Swedish dogs in approximately 2010, as inferred by time structured phylogeny. Unlike other CRCoVs, there was no evidence of recombination in Swedish CRCoV viruses, further supporting a single introduction. Finally, there were low levels of polymorphisms, in the spike genes. Overall, we demonstrate that there is little diversity of CRCoV which is endemic in Swedish dogs.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/32205264/