L’évolution de la rage au Canada

Filejski, C

doi:10.14745/ccdr.v42i06a01f

Cited by 1 publication

(2 citation statements)

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“…They may also contribute in spreading the rabies virus along certain geographical corridors, one of which being the northern portion of Quebec and Quebec-Labrador in Canada. This region has been implicated in a number of southerly rabies propagation waves [ 16 – 18 ]. The findings from our study, showing low genetic differentiation across the Quebec-Labrador Peninsula, further support the hypothesis of red foxes constituting a bridge for the large-scale propagation of rabies from the Arctic enzootic regions to southern areas.…”

Section: Discussionmentioning

confidence: 99%

“…Several past rabies outbreaks in southern Canada, namely in Ontario, Quebec and Newfoundland [ 13 – 15 ] traced their origin to the ARVV. Specifically, southward movement of the ARVV, in multiple waves mainly through transmission among Arctic and red foxes, has been documented since 1956 in the Quebec-Labrador Peninsula, which includes northern Quebec and Labrador [ 16 – 18 ]. Furthermore, as average temperatures increase, expected through climate change, we predict a decrease in reported rabies cases in Arctic foxes [ 10 ], followed by a potential spread of the ARVV to the south via red foxes [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Low levels of genetic differentiation and structure in red fox populations in Eastern Canada and implications for Arctic fox rabies propagation potential

Talbot,

Alanazi,

Albert

et al. 2023

PLoS ONE

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Rabies is a lethal zoonosis present in most parts of the world which can be transmitted to humans through the bite from an infected mammalian reservoir host. The Arctic rabies virus variant (ARVV) persists mainly in populations of Arctic foxes (Vulpes lagopus), and to a lesser extent in red fox populations (Vulpes vulpes). Red foxes are thought to be responsible for sporadic southward movement waves of the ARVV outside the enzootic area of northern Canada. In this study, we wanted to investigate whether red foxes displayed notable levels of genetic structure across the Quebec-Labrador Peninsula, which includes portions of the provinces of Quebec and Newfoundland-Labrador in Canada, and is a region with a history of southward ARVV movement waves. We combined two datasets that were collected and genotyped using different protocols, totalling 675 red fox individuals across the whole region and genotyped across 13 microsatellite markers. We found two genetic clusters across the region, reflecting a latitudinal gradient, and characterized by low genetic differentiation. We also observed weak but significant isolation by distance, which seems to be marginally more important for females than for males. These findings suggest a general lack of resistance to movement in red fox populations across the Quebec-Labrador Peninsula, regardless of sex. Implications of these findings include additional support for the hypothesis of long-distance southward ARVV propagation through its red fox reservoir host.

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Section: Discussionmentioning

confidence: 99%