This flu season creating some scary numbers for LeBonheur Children's Hospital.
In fact, one doctor said the emergency room is like a "zoo" as there are so may kids being treated with the flu.
Doctors at LeBonheur saying they are seeing three times as many flu cases as normal, and this is the worst outbreak in several years.
A lot of children coming into LeBonheur with flu symptoms including fever, cough and dehydration. In some cases their respiratory problems so bad they need oxygen.
"It's a pretty severe respiratory virus season," said Dr. Jon McCullers. "This year it started early, about six weeks ago, and we expect it to go another four to six weeks. We are seeing about 300 kids a day in the emergency department. About 30 children a day are being admitted into the hospital.
"This is the worst that we have seen since 2009."
Doctors say with children going back to school after the New Year, they are afraid the flu numbers will go even higher.
As for protecting your children from the flu, you still have time to get them a flu shot, but it will take it 7 to 10 days for it to become effective.
Doctors say if your children show symptoms of the flu, get them to a doctor as quickly as you can.
Normally, flu numbers drop off over the holidays as school lets out, but this years flu has not let up.