Obviously provinces are having to strategically give the shots so that people don’t just get a single dose due to supply issues.
That's not a problem anymore. What happened to Canada when Pfizer retooled was unfortunate, but unavoidable, given that the plant is in Europe. It's also worth mentioning that most countries ahead of us are using one of 3 vaccines that we either haven't yet approved (AstraZeneca) or didn't buy (Sputnik V and Sinovac). Things are getting better very quickly now, and will only continue to do so.