Face masks do NOT protect the wearer from coronavirus, Danish study finds 

19 novembre 2020 Non Par ADMIN

According to an article published on the website dailymail.co.uk on 19 novembre 2020 by ,

A new study from Denmark found, after one month, 1.8% of a group wearing masks had been infected with the virus and 2.1% in the unmasked group had tested positive for COVID-19.

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