Along with wintry weather can come a serious case of the sniffles. Each year, up to 20% of the U.S. comes down with the flu, caused by the influenza virus. Peak flu season usually occurs in January and February. According to the Centers for Disease Control and Prevention (CDC), "most of the U.S. is now experiencing high levels of influenza-like illness."

The CDC says you should get a flu shot and take steps to stop the spread of germs. Cover your mouth when you cough or sneeze, and wash your hands often.

 

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