Yale researchers say the key to staying healthy is your nose
Wash your hands, avoid sharing food, and wear a mask—there are many recommendations for staying healthy during cold and flu ...
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Why does it need to cover my nose? And other mask questions answered
But why don't very young children have to wear one, and why is it important to cover your nose ... have to wear a mask in take away food shops, but if you are sitting down to eat, you can remove ...