That debate is on here too. One con is that it could lead to unnecessary fear. Another that wearing a mask could lead to less appreciation of the importance of social distancing, still touted as the most important thing. With washing hands.
On health professional stated that any mask should never be shifted to the head or under the neck, and that it was important to not touch your face when putting it on or taking it off.
Hands should always be washed on coming home, and that any mask should be washed every day.
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