Review finds masks 'modestly effective' at best
This article is 4 years old
CORONAVIRUS | A systematic review of the available research has found little evidence to support the widespread wearing of facemasks to prevent respiratory diseases such as Covid-19.
The paper ‘Facemasks and similar barriers to prevent respiratory illness such as Covid-19: A rapid systematic review’ has published at the pre-print repository MedRxiv yesterday and has not yet been peer-reviewed.
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