The UK today became the first country to allow the use of Pfizer and BioNTech's Covid-19 vaccine.
And in the US, federal government officials are promising coronavirus vaccines soon — some even before Christmas — and states are gearing up to begin vaccinating Americans sometime in December.
With all this news of possible coronavirus vaccines, do you have a question about how they work? Would you take a vaccine once it becomes available? If not, what reservations do you have and why?
Leave your questions in the box below and we will try to find you some answers.