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Emerging arboviruses in Quebec, Canada: assessing public health risk by serology in humans, horses and pet dogs

Periodic outbreaks of West Nile virus (WNV), Eastern equine encephalitis virus (EEEV) and to a lesser extent, California serogroup viruses (CSGV), have been reported in parts of Canada in the last decade. This study was designed to provide a broad assessment of arboviral activity in Quebec, Canada,...

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Bibliographic Details
Published in:Epidemiology and infection 2017-10, Vol.145 (14), p.2940-2948
Main Authors: ROCHELEAU, J. P., MICHEL, P., LINDSAY, L. R., DREBOT, M., DIBERNARDO, A., OGDEN, N.H, FORTIN, A., ARSENAULT, J.
Format: Article
Language:English
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Summary:Periodic outbreaks of West Nile virus (WNV), Eastern equine encephalitis virus (EEEV) and to a lesser extent, California serogroup viruses (CSGV), have been reported in parts of Canada in the last decade. This study was designed to provide a broad assessment of arboviral activity in Quebec, Canada, by conducting serological surveys for these arboviruses in 196 horses, 1442 dogs and 485 humans. Sera were screened by a competitive enzyme linked immunosorbent assay and positive samples confirmed by plaque reduction neutralisation tests. The percentage of seropositive samples was 83·7%, 16·5%, 7·1% in horses, 18·8%, 0·6%, 0% in humans, 11·7%, 3·1%, 0% in adult dogs and 2·9%, 0·3%, 0% in juvenile dogs for CSGV, WNV and EEEV, respectively. Serological results in horses and dogs appeared to provide a meaningful assessment of risk to public health posed by multiple arboviruses.
ISSN:0950-2688
1469-4409
DOI:10.1017/S0950268817002205