If someone at my work is sick with stomach bug how do I avoid catching it?

Stomach Bug. Avoid Stomach Flu > Wash your hands before touching your eyes, nose or mouth. Wash wi warm water & soap for 20 seconds. Hand-sanitizer doesn't kill Norovirus. Use paper towel to turn off faucet & open door when exiting a public restroom. Antiseptic wipes can be used on doorknobs, keyboards & other surfaces if diluted bleach is not available. Wash dishes in dishwasher (vice hand-washing). Clean .
Stomach bug. Wash you hands often, don't eat or drink after them.