Me-thinks Canada rolled the dice a bit early on and decided to concentrate on getting first doses in arms instead of two shot full vaccinations because we are dependant on other countries for our vaccines.
A recent 1.3 million person study in Scotland found that people with one Pfizer shot had a 90% less chance of being hospitalized with Covid-19. That's good enough for now!
Looks like it was a good gamble.
Yes, it was a gamble, and it seems, a good one. I have heard/read that having more time between the two jabs builds up immunity. But then there were saying that was a bad thing. Who knows. But the reality is/was, with a shortage of jabs, getting at least one is better than none.
Later,
Dan