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How do the vaccines work?
Like all vaccines, the COVID-19 vaccine teaches your body to fight the virus and protect you from getting sick. The vaccine is given as a shot to the upper arm. For some kinds of the vaccine, you will need to get more than one shot. Your second shot will be 3 or 4 weeks after your first. If you get this type of vaccine, it is important for you to get both shots for the vaccine to work.