A new study from the University of Chicago finds most adults have not gotten their flu shot yet.
Researchers surveyed more than 1,200 Americans and found that 41-percent of adults say they're not getting their vaccination.
And another 14-percent say they plan to get their flu shot, but hadn't done it by mid-November.
So far-- it has been a mild season for the flu.
Last year's flu season was the deadliest season in decades.
Health officials say more than 80,000 Americans died from flu-related illnesses.