Travellers planning to set sail this season can rest a little easier—cruise ships aren't the norovirus breeding grounds ...

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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.

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 ...

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.

Other viruses often have a fat-based outer layer called an envelope, which can be easily broken down by alcohol-based hand sanitizers. However, norovirus does not have this envelope.

As the norovirus outbreak continues to spread in the U.S., you can't rely on hand sanitizer alone to protect you. Norovirus, also sometimes called the "winter vomiting disease," causes ...

Norovirus, on the other hand, is a non-enveloped virus. It's encased in a hard, protein-based shell called a capsid, NBC News explains. This makes it resistant to our typical alcohol hand sanitizers.