This is damning. By removing prov mask mandates last yr, Alberta set up an internal experiment between schools boards. The province's own analyses found:
— Wing Kar Li, PhD (@wingkarli) July 13, 2022
"School boards without mask mandates have 3 times more outbreaks in their schools, on average."
(Feb. 7/22) #ABEd pic.twitter.com/PihEMnZJvJ
Masking works, but our political establishment seems dead set against them.
I would also note that the introduction of mask mandates corresponded to reductions in influenza and other respiratory diseases that cause tens, if not hundreds, of thousands of deaths a year.
Masks work.
And I think they’re probably right.
— David Fisman (@DFisman) July 17, 2022
What’s puzzling to me is this: we literally learned the past 2 years that these wintertime respiratory outbreaks (flu, pneumo, rsv) can actually be made to DISAPPEAR with non-pharmaceutical measures.
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