Carnival Cruise Line’s infamous 2013 “Poop Cruise” is making headlines again, thanks to Netflix’s new Trainwreck documentary.

During the week of Dec. 5, the CDC reported 91 cases of norovirus, more commonly known as the stomach flu, which is over double the highest number recorded between 2021 and 2024.

CDC Reports Rise in Norovirus Cases. The CDC has reported 91 outbreaks during the week of December 5, up from an average of 65 during the same period from 2012 to 2020.

Norovirus outbreaks on cruise ships are spiking in 2025, with 16 reported incidents so far, ... according to CDC records. Norovirus was also the cause in many of those cases.

A CDC spokesperson said the agency is monitoring norovirus outbreaks through its CaliciNet laboratory database and pointed to a surge of GII.17 strains in Asia and Europe in 2014 that was followed ...

So far this year, there have been 16 illness outbreaks reported on cruise ships in the CDC's jurisdiction, mostly from norovirus, compared with 18 outbreaks in all of 2024 and 14 in 2023, VSP ...

The CDC notes that norovirus can found in both vomit and feces "even before you start feeling sick." "The virus can also stay in your poop for 2 weeks or more after you feel better.

According to the CDC, norovirus is the leading cause of foodborne illness in the United States, responsible for 58% of such infections acquired in the country each year.

Norovirus, also known as food poisoning or the stomach bug, is a highly contagious virus that causes inflammation of the stomach or intestines, per the CDC. "Norovirus, also known as Norwalk-like ...

The CDC reported 91 norovirus outbreaks the week of Dec. 5, up from 69 the week before. By comparison, up to 41 outbreaks were reported during that same week the previous three seasons.

There have been 12 GI outbreaks on cruise ships in 2025, so far, according to the CDC. According to the federal health agency , every year the norovirus causes between 19 and 21 million illnesses ...

With the decrease of GII.4 outbreaks since 2024, whether GII.17 viruses will continue to cause an earlier onset of the norovirus season cannot yet be determined," the CDC researchers wrote.