Spring is here which typically means the flu season is winding down.
Well, the CDC says not so fast. A new strain is starting to cause problems.
The latest CDC report found that B-viruses are being reported more frequently.
This is different than the A-strain that caused so many illnesses this flu season.
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In the week ending March 17, the CDC says 58 percent of confirmed flu cases were from the B-strain.
Health officials warn this strain tends to be more severe for younger children.
Here's some even more bad news.
If you were sickened by the A-strain earlier this season you can still catch a different strain.
You can still take some steps to protect yourself. The CDC says anyone who didn't get the flu shot this year can still get vaccinated.
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CDC warns flu season isn't over yet