There are 36 states reporting widespread flu activity, while an additional 13 states recorded regional activity, according to U.S. HealthWorks.
Nationwide, 12 children have died due to flu this season, while a total of 2,485 flu-related hospitalizations -- nearly nine for every 100,000 people -- have been reported.
The highest rate of hospitalization was among adults 65 or older, followed by adults between 50 and 64 and then children up to 4 years old.
Doctors with U.S. HealthWorks offer these tips:
--When to see a health care provider: The CDC recommends people at high risk for complications from the flu be treated with neuraminidase inhibitor antiviral medications as soon as possible once they become sick. Flu complications, such as pneumonia, can result in hospitalization or even death.
--Stay at home and rest: There's no need to fight or bravely go to work. Stay home and stay warm, the CDC recommends. It's best to remain at home and away from others for at least 24 hours after your fever breaks so you don't infect people who are well.
--Drink plenty of fluids: Water is your friend when you have the flu. Drink lots of it, along with other clear liquids to prevent fluid loss or dehydration.
--Not too late for flu shot: Experts recommend that everyone 6 months of age and older get a flu shot to prevent sickness. Even though flu season is well underway, it's not too late to get vaccinated.