My point about transmission in schools is that unless there is testing of school contacts (with and without symptoms), it's impossible to know whether there is transmission in schools. I think it is highly unlikely that there isn't any transmission in relation to school settings, but I also think that the testing protocols might not be focused on trying to identify within-school transmission. I don't think that's an unreasonable assumption, since there is very clear indication that keeping schools open is a top policy priority. Churches have been shut down, and I don't think we've heard about church-based clusters.
I think that it would have been prudent to bring in some modest restrictions (indoor mask mandate, and perhaps some limits on restaurant / bar capacity, etc.) when schools were re-opening. It would have been rational, and perhaps acceptable as most would want to give schools the best chance at staying open for as long as possible. The data showed very clearly in mid-October that there was a surge coming in Manitoba (with rising case counts and rapidly rising test positivity). A short, sharp containment at that time would have pushed the numbers down much more quickly, and perhaps avoided a lot of the transmission that occurred subsequently in hospitals and other institutions. As I recall, the surge in August was tied to a number of industries / plants, so not as much of an indicator of broader community transmission.
But it's pretty obvious just from the test positivity that things were getting out of control in mid-October.
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