Of Canada’s major cities, Ottawa had the highest percentage of seroprevalence at 1.29 per cent, followed by Toronto with 1.07 per cent and Vancouver with 0.60 per cent.

again: these numbers continue to be very weird, and broadly inconsistent with themselves.

ottawa had one of the lowest case counts in the country at the time.

i don't know what the right analysis is, but i'm leaning towards biases in the sampling. if this method of testing blood donors is being chosen because it's supposed to be a random sample, that doesn't seem to really be the case.

https://www.cp24.com/news/more-than-1-per-cent-of-torontonians-have-covid-19-antibodies-canadian-blood-services-study-1.5096825