It's increasing in the west, but there are signs flu season is leveling off - and continues to decline in the east.
Meanwhile, thousands of people are spending this weekend in bed with the flu.
But, as Erika Edwards reports, serving up a scoop of sorbet might help some feel better, faster.
While many swear by anti-viral medicines like Tamiflu, you have to get them within 48 hours of feeling sick.
"If you start the prescription anti-virals later, they don't work," Dr. Susan Rehm with the Cleveland Clinic said.
That's when home remedies come into play.
Jeni Britton Bauer used a family as inspiration when creating her own remedy, Jeni's Hot Toddy Sorbet. It's actually a cold toddy, with orange and lemon juice, ginger and honey.
"Using things like honey would be very soothing," Rehm said. "There's a little bit of cayenne pepper in it, that would help congestion."
There's also a dose of liquor.
"The whiskey, well, it's whiskey so it kind of relaxes you," Britton Bauer said. "So that's the idea for that."
It's like a giant cough drop - with a kick.
"Most of these things are related to symptom management," Rehm said. "Feeling better while your body heals and clears the infection."
If sorbet isn't your thing, mom's chicken soup is great back-up. Doctors also recommend lots of water or juices, as fevers can dehydrate you.