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World

Do masks really slash the risk of catching Covid?

19 November 2021

6:50 AM

19 November 2021

6:50 AM

Which public health interventions help to cut the spread of Covid-19 — and which do not? Except for vaccinations, where we have extensive trial data, this is a question on which the government has had little information to help it. But this morning’s headlines appear to offer an answer: wearing masks may help slash Covid infections by 53 per cent.

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