According to the CDC, there are about 2,500 norovirus outbreaks each year in the United States, mostly concentrated between November and April. Norovirus symptoms can include diarrhea, vomiting ...

Norovirus outbreaks 2025 Each year, about 2,500 norovirus outbreaks are reported in the U.S., per the CDC. These can occur throughout the year but are most common between November and April.

The cause of the gastrointestinal illness aboard the Navigator of the Seas' July Fourth trip is not known at this time, ...

Among the 3,914 guests aboard its Navigator of the Seas ship, 134 reported being ill during a cruise that ended July 11, ...

Norovirus outbreaks 2025 Each year, about 2,500 norovirus outbreaks are reported in the U.S., per the CDC. These can occur throughout the year but are most common between November and April.

In fact, norovirus outbreaks in early December reached the highest level for this time of year since 2012, CDC data show. “This year, the number of reported norovirus outbreaks have exceeded the ...