Then your brother comes by and flips the light switch off but doesn’t wash his hands before eating lunch. Those germs you put on the light switch could be picked up by your brother, and the next ...

What's more, "moist hands touching a public doorknob on the way out of a public bathroom are the perfect storm of recontamination, making your clean hands germ-covered again," Wahrman said.

Teacher Used Bread to Show What Happens When You Don't Wash Your Hands — the Results Are Foul By Murphy Moroney Updated on Dec 21, 2019 at 2:00 PM ...