Created: 12/30/2013 11:48 AM WHEC.com
Every state has reported cases of the flu but it's the worst in states that are in the south and central part of the country.
The number of people going to the doctor is above average and has gone up four weeks in a row. The dominant strain is H1N1 which mostly affects young and middle age adults.
That strain is included in this year's flu vaccine so doctors are still recommending everyone over age six months get a flu shot.