Covid health questions

This week, HuffPost UK reader Janet asked: “If I hold my breath when I walk past people, would that help stop me getting coronavirus if they have it?”
This week, HuffPost UK reader Rita asked: "Are surgical masks better than cloth masks?"
HuffPost UK reader Judy asked: "I had Covid on 22 November, how long should I wait to get the vaccine?"
Trials are underway to explore whether vaccines can be mixed. Here's what you need to know.
HuffPost UK reader Lyn asked: “If I get the vaccine can I still transmit the virus to others?”
This week, HuffPost UK reader Jill asked whether licking envelopes before posting Christmas cards could spread the virus.
This week, HuffPost UK reader Julia asked: "How long do I have to wait after having the flu vaccine to have the Covid vaccine?"
HuffPost UK reader Pat asked: “Do we need the Covid vaccine every year?”
HuffPost UK reader Jill asked: “Am I more at risk walking through a jogger’s ‘vapour trail’ than I am walking through another walker’s vapour trail?"
This week, HuffPost UK reader Helen asked: "What is the damage to your health of wearing masks?"