This model of COVID transmission has already been described by Schijven et al in this brilliant paper. https://www.medrxiv.org/content/10.1101/2020.07.02.20144832v1 …
I think it dovetails beautifully with @C_Althaus ’s work on Pareto distributed R0
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So back to the masks: inasmuch as COVID depends on tipping points/thresholds, and inasmuch as the generation of clouds of respiratory droplets is impeded by masks (vide supra for Uncle Rob video), and inasmuch as symptom screening in kids ain’t gonna keep COVID out of schools
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(Vide supra for sickkids own hospital guidance on why mask wearing is so important even when people don’t have symptoms), and inasmuch as our provincial government seems prepared to fund an extra custodian per 3.5 schools for “safe opening” [sic]
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Encouraging mask use for kids really is likely to be an important tool for reducing school-based superspreader events and school-driven COVID resurgence. It probably won’t be enough but every little bit helps
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There’s more to say about this weird little sickkids simulation study (obviously not the awesomest optics to base it at BSS, UCC, and Branksome Hall when you’re making guidance for cash-strapped public schools)
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Weirdness in recruitment materials that tells us more about the investigators than the study, and which, if they’re going to be asking subjects about anxiety counts as “contamination”: “Mask wearing for a prolonged period of time may also be anxiety-provoking or frustrating.”
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I’ll leave that to others to comment on. This study is a weird coda to a weird report, and looks like yet more decision-based evidence making. “We found that 50% of students touched their masks in a manner that could result in contamination of hands” sort of stuff
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Again: doesn’t matter. That’s not what the masks are about. Keep up. Some kids have sensory issues or medical exemptions. Sure. It’s not about perfection.
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PS: nieces and nephews in masking jurisdictions. They do it. It’s fine. Easier if grownups set good examples and don’t create issues when there aren’t any.
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Good night
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I've spent too much time dealing with this contamination claim. It's so illogical that it's puzzling. "What if the outside of the mask is contaminated?" Great! The mask is doing even more than source-control because outside contamination means you'd otherwise *inhale* the virus.
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What if the inside is contaminated? Self-contamination? Umm, ok the person is already infected and we got source-control? That sounds.. exactly like what should happen. "What if they doff incorrectly?" As opposed to no mask and the virus is therefore all over their face/clothes?
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I've even had a person come up with a scenario that was: infected mask-wearing person touches inside of mask, gets hand infected, shakes hand with susceptible person. Besides shaking hands while mask, how is even that better than no mask? I cannot get the logic whatsoever.
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