Leigh, beat me to it. Was about to post the same info about the flu shot when I saw your post.
I get the flu shot everyyear. Two years ago I didn't get it because of a vaccine shortage. That Thanksgiving I had a house hull of guests. My 15 year old niece came for dinner, not telling anyone she was sick until we all caught the flu from her...all, except for the three people at the table who had had flu shots! (Was so ill I thought I'd die!) So, I always get the shot, if available. The Pres promises that everyone in the US will get a shot this year, if they want one. We'll see...