Respiratory virus activity is already high, and health experts anticipate the upcoming holiday season to accelerate virus spread.
Here's a look at where things stand as of Dec. 12:
COVID-19: The nation may be at the start of yet another COVID-19 surge, with cases up over 56 percent in the last two weeks. Hospitalizations have also jumped 28 percent, according to data tracked by The New York Times. All but five states have seen hospitalizations increase since Thanksgiving. Read more about projections for daily hospital admissions here.
Flu: The nation's worst flu influenza outbreak in nearly a decade is well underway, with nearly 26,000 lab-confirmed flu patients hospitalized for the week ending Dec. 3. The CDC now estimates there have been at least 13 million flu illnesses, 120,000 hospitalizations and 7,300 deaths so far this season.
RSV: The surge in respiratory syncytial virus appears to be slowing in parts of the U.S., though many children's hospitals are still grappling with significant capacity challenges. The virus may have peaked in the South and Southeast and may have plateaued in the Mid-Atlantic, New England and Midwest regions, CDC officials said Dec. 5. Nationwide, RSV hospitalizations have declined from a rate of 4.9 per 100,000 in the week ending Nov. 12 to 2.5 per 100,000 in the week ending Dec. 3, CDC data shows.