The number of people hospitalized with flu nearly doubled during Thanksgiving week — 19,593 compared to 11,378 people admitted to the hospital the week prior.
On Friday, the CDC reported that flu is spreading at high levels in 45 states, even in Southern states and others where the virus has been spreading since October.
As of Dec. 2, 77% of pediatric hospital beds nationwide were full, according to Health and Human Services data.
There is no data yet to show how protective this year's flu vaccine is against the current strains.
Dr. Kavita Patel said that "almost everybody" she's seen test positive for flu at Mary’s Center, a community health center in Maryland, is unvaccinated.