While they’re convenient when you’re on the go, hand sanitizers will not kill norovirus, per the CDC. “The alcohol in them can’t just penetrate and disrupt this virus,” says William Schaffner, M.D., ...
It's a nasty stomach bug that causes vomiting, diarrhea, nausea, and more...but most household sanitizers won't kill it. Still, you can protect yourself from norovirus.