The flu shot is important for older adults every season but never as important as this year. The extra strength and the regular strength are not made from the live virus so you cannot get the flu from them. The mild symptoms that might happen are from your immune system getting ready to fight the flu. I had the extra strength one about a month ago, it did not even burn when given. The only thing I noticed was a sore arm the next day but not anything different from when I do upper arm exercises that I have not done in a while. Take the shot and you will have better protection.
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