How Does Swine Flu Spread?
Swine flu spreads like regular flu: from an infected person through coughing or sneezing. The virus can live on surfaces for a short while, so you can catch it by touching something an infected person touched and then touching your nose, mouth, or eyes. (See the CDC for more information.)
Take the same precautions as you would with regular flu: wash hands regularly, use hand sanitizer, and don't touch your nose, mouth, or eyes unless your hands are really clean. If the flu spreads, you may want to wear a mouth guard to protect against inhaling germs. Look for an "N95" mask, which is designed to keep out germs and viruses.
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