Even if they had efficacy they would they would have to be worn at all times by everyone.
Yup.
And even in all their MOPP gear, if the contagion is significantly concentrated in an area, it might be better to just avoid it - IF IT'S REALLY DANGEROUS IF NOT DEADLY, which COVID was mostly not.
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Even if they had efficacy they would they would have to be worn at all times by everyone.
Yup.
And even in all their MOPP gear, if the contagion is significantly concentrated in an area, it might be better to just avoid it - IF IT'S REALLY DANGEROUS IF NOT DEADLY, which COVID was mostly not.