Do not meet other people.
Use your bent elbow to cover a cough or a sneeze.
Take vitamins.
Use a hands sanitizer with at least %60 alcohol.
Stay home if you feel ill.
Use a tissue to cover your sneeze.
Avoid touching your nose, mouth and eyes.
Use a face mask.
Wash your hands with soup and water at least for 20 seconds. Dry them thoroughly.
