Norovirus is often colloquially called the “stomach flu” — though it is not related to influenza — or “food poisoning” because it can spread via contaminated food and water.
Over the last month, norovirus has been circulating in the Northeast at the highest rates since April of last year.
The region has been seeing over 13% of norovirus tests come back positive, on average, since late January, according to data from the Centers for Disease Control and Prevention. That’s a higher share than in any other part of the U.S. right now, but lower than the region’s rate at this time last year.