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Plenty of different types of viruses and bacteria are resistant to alcohol-based sanitizers. And they can make you very sick.

While it's true, hand sanitizer is ineffective for Norovirus, both Nagappan and the CDC acknowledge it does work against respiratory viruses. So, keep it handy.

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In addition to sheer grossness, norovirus is notable for its resistance to many cleaning agents, including alcohol-based hand sanitizers.

Proper hand washing with soap and water is important too. Alcohol sanitizers are not effective. If there's a contaminated environment such as the bathroom, clean and disinfect the area with bleach.

Alcohol sanitizers are not effective. If there’s a contaminated environment such as the bathroom, clean and disinfect the area with bleach. Why don’t sanitizers work against the norovirus? The ...

Norovirus is notable for its resistance to many cleaning and disinfecting agents, including alcohol-based hand sanitizers, so be sure to read labels closely. (Adobe Stock) ...

While hand sanitizers are beneficial in killing different pathogens and viruses, it might not be effective against norovirus. This is because it has a firm shell.

“Hand sanitizer does not work well against norovirus. You can use hand sanitizers in addition to hand washing, but hand sanitizer is not a substitute for handwashing, which is best,” says the CDC.