Canada isn’t releasing its infection numbers to the public, so its hard to tell what level of concern there should be.
Right up there with North Korea on information sharing.
Here’s the numbers for Canada and every other country.
Canadian numbers are updated every morning and afternoon.
https://ncov2019.live/data
If thousands of nurses are crossing over into the US to work, it sounds like they don't have any serious crisis in Canada.
Here are the numbers updated as the numbers come in at least on a daily basis. As you can see the Nunavut Territory is the place to be in the Great White North! :)
https://www.canada.ca/en/public-health/services/diseases/2019-novel-coronavirus-infection.html