CDC Data: Norovirus Cases on the Rise in the US, Namely the Northeast

Transmission electron micrograph shows norovirus particles in an undated file photo. (Charles D. Humphrey/US Centers for Disease Control and Prevention)
Published February 26, 2024

Norovirus has been on the rise across the northeastern United States, officials say.

Norovirus has been on the rise across the northeastern United States over the past month or so, according to recent data provided by the U.S. Centers for Disease Control and Prevention (CDC).

More than 13 percent of tests for the virus, which is associated with vomiting and diarrhea, came back positive as of mid-February, the most recent CDC data revealed. That’s the highest level in any region of the country.
Nationwide, 12 percent of tests for norovirus have come back positive during the same period, the data show. In mid-January, about 10 percent of tests came back positive.
That’s lower than the 15 percent positivity rate from a year ago, and it’s also lower than the 14 percent positivity rate in 2022, according to the data.

“Participating U.S. laboratories report the total number of norovirus tests performed that week, and the number of those tests that were positive to CDC weekly,” the agency wrote on its website. “Because reporting delays may be expected for some laboratories, data shown for the more recent weeks may be less complete than others.”

The CDC noted that norovirus is often highest in the late fall, winter, and early spring. It is associated with restaurants, schools, hospitals, camps, cruise ships, and other venues, with health officials saying it is the largest source of foodborne illness in the United States. The virus is often called “food poisoning” or the “stomach flu.”


RELATED: Norovirus spiking again? Here are the symptoms to watch for as cases surge

Norovirus is a very contagious virus that causes vomiting and diarrhea. Learn how it spreads and how you can help prevent getting it.
Published February 25, 2024

There’s a new health alert to be aware of as cases of norovirus are spiking around the country, including here in New York.

The Centers for Disease Control say positive tests for norovirus in the Northeast have reached almost 14% in recent weeks. That’s the highest number in the United States.

The city’s Department of Health website does not have specific numbers on cases, but does track symptoms reported during emergency room visits. Tens of thousands of New Yorkers have visited the ER for vomiting and diarrhea in the past few months, according to data from the city’s Health Department.

Norovirus is a common stomach virus that is highly contagious, and can be spread through food and person to person contact. Sharing eating utensils, changing diapers, consuming contaminated food or drinks, or touching infected surfaces or objects can lead to infections, the Health Department says.





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