Norovirus cases are surging in the US, the CDC says. Here are the symptoms to look for, plus how long you're contagious for, ...

A person sick with norovirus can shed significant amounts of the virus, and it doesn’t take much to infect someone else.

Norovirus can come on suddenly as it has an incubation period of 12 to 48 hours. Symptoms include vomiting, diarrhoea, ...

Norovirus tends to come on hard and fast. “Nausea and or vomiting are usually the first symptoms of norovirus,” says ...

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