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Covid-19: how effective are face masks, really?

Science Weekly

Twice a week, the Guardian brings you the latest science and environment news

Since the start of the pandemic, face coverings and their ability to prevent the transmission of Covid-19 have been under constant scrutiny by scientists, politicians and the public. More than a year and a half in, what do – and don’t – we know? Madeleine Finlay speaks to Prof Cath Noakes about how effective different face coverings are, how best to use them, and when we should be masking-up. Help support our independent journalism at <a href="https://www.theguardian.com/sciencepod">theguardian.com/sciencepod</a>

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Covid-19: how effective are face masks, really?

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