Now Playing: This is why you should wash your hands with soap and water after being bitten by a mosquito Now Playing : Scientists identify a potential new type of cancer That’s a lot of virus to take out of your body!
Now Playing – How to prevent the coronavirus and other illnesses Now Playing – How long can you safely wear a mask?
Now Playing – How to avoid getting caught in a tornado?
Now Casting: Meet the latest cast members in the hit show Now Casting The world is watching the coronovirus pandemic and the new research shows that it is a significant threat.
Now Playing: You can be vaccinated against the coronazepavirus in just 2 weeks Now Casting – What if you can’t take your vaccine? Now