THE QUESTION
.
We were used to seeing Donald Trump often without a mask;
it will now be necessary to get used to seeing Joe Biden wearing a double mask.
In the United States, the wearing of two masks flourishes with, for example, a fabric mask above and a surgical mask below.
Is it superfluous coquetry?
A welcome gesture of caution at a time when variants of the Covid, even more contagious, are circulating, including in France?
Or is it a false good idea, more counterproductive than anything else?
Read also: Covid vaccine: are we protected after the first injection?
CHECKS
.
The Anglo-Saxon press, scientific citations in support, rather encourages
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