Quoted from TheLaw:
That only stops some % of some flus...which of course almost no one has when they say "I have the flu" anyway
I remember last years shots the found out didn't do anything anyway...whoops
"Vaccines are created to protect against the three or four mostly likely culprits. Some years the guesses are good and the vaccines are quite effective. Other years the guesses aren’t so good and the vaccines aren’t as protective as they could be.
The flu vaccine may be imperfect, but it’s still worth getting. Here are three reasons why:
It may keep you from getting the flu.
If you do get the flu, you may not get as sick as you would have gotten without the vaccine, or you may be less likely to develop serious complications like pneumonia.
If you don’t get the flu, you can’t pass it on. So you will help keep other people from getting sick—including those who may become seriously ill or die from flu complications."
- Harvard Health Blog -