Why COVID-19 testing varies so much across Canada

If you just came back from an overseas trip with a fever and a cough, you'll be prioritized for a COVID-19 test in Manitoba and Nova Scotia, but not Alberta or Quebec. And some provinces are expanding who can get tests, as others narrow them. Why? And what does it mean for the accuracy of Canada's case numbers?
Source: CBC | Health - Category: Consumer Health News Tags: News/Health Source Type: news