Norovirus cases are spiking in the US. They cause nausea, vomiting and diarrhea - and spread fast. Here's what you need to ...

Health experts told Newsweek about the threats posed by the viruses and shared the best ways to protect oneself.

One expert says the rate of norovirus infections has increased substantially this year compared to years past.

The reason it’s so contagious is because when you’re sick, “you can shed billions of norovirus particles that you can’t see without a microscope,” the agency explains. “It only takes a ...

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FILE - This electron microscope image provided by the Centers for Disease Control and Prevention shows a cluster of norovirus virions. (Charles D. Humphrey/CDC via AP, File)(Charles D. Humphrey ...

Several years ago, when asked what food I shied away from, one of the six on my list was raw oysters and other raw shellfish.