Get ready, flu season is right around the corner.
That's why the Atlanta-based Centers for Disease Control and Prevention is reminding Americans to get a flu shot.
“The bottom line, flu is unpredictable. But you can predict that the single best thing you can do to protect yourself is a flu vaccine,” says Dr. Thomas Frieden, the CDC's director.
Frieden admits last year's vaccine was not as strong as usual, performing as poorly as 13 percent for the H3N2 strain.
One way the CDC improved the vaccine came from talks with other officials across the globe.
"We work with countries all over the world, particularly in the Southern Hemisphere to see what is spreading there because that's usually what spreads here the following winter," Frieden said.
There are already 40 million doses of the flu vaccine for the upcoming season.
Frieden says everyone over 6 months old should get a shot.