Masks
When I go out, I see lots of people wearing masks. I also see medical people wearing masks when dealing with COVID-19 cases. Why is this? The BBC was unequivocal, at the start of this crisis, in stating that masks are not useful as a preventive measure against COVID-19.
Was the BBC wrong, or lying? I don't recall seeing/hearing any official retraction of the previously stated position.
Bill.
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