Masks with close to zero efficacy according to a systematic review of 78 studies by Cochrane:
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> We are engaging with the review authors with the aim of updating the Plain Language Summary and abstract to make clear that the review looked at whether interventions to promote mask wearing help to slow the spread of respiratory viruses.
Thanks, this explain that abstract, it is the usual patch censorship
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@post @feld @freemo
It is not about censorship and It is quite clear looking at the all other evidence we posses. Don't evade the context even if we are talking of MAs/SRews.