You may have already gotten your flu shot but a new study shows you may not be fully protected against getting the bug this year.
The study by University of Minnesota researchers shows seasonal flu shots only prevent the flu in about 59 percent of adults. Researchers say this could be a big problem if a dangerous pandemic broke out.
Still, they say the current vaccine is the best weapon we have against the flu for now, so it's better to arm yourself with some protection than none at all.
