influenza

After virtually disappearing for the last two years, there are troubling clues that the flu could come roaring back this year, to cause trouble alongside COVID.

Scientists are tracking a deadly bird flu outbreak that has infected wild birds in more than 30 states. Purging the nation's poultry supply may not be enough to keep the virus from sticking around.

There's a lot that scientists don't know about how viral infections can interact. But researchers are eager to figure out how coronavirus infections might affect flu infections and vice versa.

Whether your mild or moderate symptoms mean you have a cold, the flu, or COVID-19 doesn't change the medical advice right now. Stay home, rest, and call or email your doctor if symptoms worsen.

Though COVID-19 has captured the headlines, influenza places a huge burden on the health care system. This year's flu shot provides good protection, the CDC says, so do get one if you haven't already.