The Centers for Disease Control and Prevention (CDC) says norovirus is the leading cause of vomiting and diarrhea from acute gastroenteritis in the U.S. Norovirus infection, sometimes referred to as stomach flu, is unrelated to the flu caused by the ...

The CDC says norovirus cases are surging. Plus, the FDA issued an alert related to CA shellfish that may be contaminated with the virus.

The federal Centers for Disease Control and Prevention reported double the cases of norovirus compared with previous years in early December after outbreaks were reported across the country.

Noroviruses, also known as food poisoning or the stomach bug, are “ common and highly contagious ,” according to the National Foundation for Infectious Diseases. About 1 in 15 people across the U.S. get the virus annually, experts said.

New data released by the CDC shows a surge in Norovirus cases nationwide, with cases of the highly contagious stomach bug up in several states. NBC’s Shaquille Brewster reports for TODAY.

Most norovirus outbreaks occur when people who are already infected spread the virus to others by direct means, such as through sharing food or eating utensils.

Norovirus cases are growing in the US — here is what health officials say you can do to avoid it - The Centers for Disease Control and Prevention said the number of outbreaks reported this year exceed

Cruise ships saw the highest number of stomach bug illnesses since 2012 with 16 outbreaks impacting a total of 1,894 passengers.

The seasonal increase in norovirus cases is tied to colder months, when people gather indoors more frequently, especially for the holidays. Experts believe the pandemic-era reduction in outbreaks and heightened hygiene practices may have left many with lower immunity.

Taking precautions to protect yourself from the quartet of infectious diseases can lessen your odds of bringing an illness into the new year.

Feeling under the weather? Local health officials are tracking a variety of viruses making rounds in the community right now.