From NPR.

It’s looking like it will be a bad flu season, and the CDC has released new data documenting influenza’s spread as cases surge across much of the United States.

The CDC estimates there have been 7.5 million cases so far this season — up from 4.6 million just the week before — and already more than 3,000 deaths. Lisa Grohskopf is a medical officer at the CDC: "Probably the most important thing is that if you haven’t gotten a vaccine, is to get one … It is by no means too late."

With adult flu vaccination rates in the U.S. just above 40%, NPR received a follow-up email from a different CDC spokesperson clarifying that vaccines are a personal choice and that people should speak to their healthcare providers about the risks and benefits.