Data from the Massachusetts Department of Public Health shows the number of confirmed cases norovirus in the state more than ...

How long does norovirus last? People who fall ill with norovirus typically recover within one to three days, per the CDC.

Cases of norovirus are spiking in the U.S. along with other illnesses in what some are calling a “quad-demic” of viruses.

But that’s not always how serious illness plays out. Children who need to be on ventilators, have tracheostomies or ...