Time For Vacation in Guam, The U.S. Virgin Islands or Puerto Rico
This is a map from the Centers for Disease Control that shows the hardest hit areas of the country which is... everywhere. To avoid it you have to get off the lower 48. If you can't get away here are a few tips for avoiding the flu from the CDC:
1) Get a flu shot. 2) Get a flu shot. 3) Get a flu shot.