Learn why hand-sanitizer gels lose effectiveness over time, plus tips to keep hand sanitizer at full germ-killing strength ...

Many common household cleaners — such as hand sanitizer ... Let the solution sit for at least 30 seconds before wiping clean. For more information, read about how alcohol can kill germs.

Typical household cleaners like hand sanitizer or wipes don't kill germs from norovirus. Here's what you can use instead.