A top public health expert says the evidence on use of #masks in public has become “so strong” it needs urgent attention. He says they could be key intervention to stop transmission. The MOH says they’re not needed. @NewshubNZ #COVID19nz #Masks4All #NZhttps://www.newshub.co.nz/home/new-zealand/2020/04/new-zealand-needs-to-urgently-look-at-wearing-masks-in-public-expert.html …
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As for increased risk from incorrect handling of masks in community settings? There is not a single study showing that. We have been searching high and low for it. (With epidemiologists, virologists and public health experts on the team). We couldn't even concoct the scenario.
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Studies of donning/doffing risk are all from medical settings, and the risk is incorrect donning/doffing compared to correct donning/doffing. I mean, yes, if you are handling SARS/Ebola patients and you screw up doffing, yeah more risk. But that's not the claim here.
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Bravo Zeynep

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I fear your supposed journalistic disinterest is starting to fray, Michael.
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Thanks. I will read and inwardly digest. However, from a quick look at your screenshot I note the thrust of the argument is effectiveness at a *population* level for a particular mitigation. Covid-19 is different because risk compensation at an individual level can easily spread
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There isn't much evidence for risk compensation at the individual level, either. That said, it can no doubt occur but it has always been a second-order effect dwarfed by the benefits of the first order effect. And, there is reason to think the opposite: masks encourage vigilance.
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