"Even 10 percent effective is better than nothing, and a lot of it has to do with herd immunity -- the more people are protected from it, the more other people will also be protected," she said. "In fact, in a year where it's low effectiveness, it's even more important that everybody get it so we can get as much resistance and we don't allow the virus to thrive and grow and keep changing."
Experts say that if you do get the flu, it will likely be less severe if you have gotten a flu shot.