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.

Dozens of norovirus outbreaks were reported in New Jersey in December, though individual infections typically aren't reported.

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