2024 marks highest number of stomach illnesses on cruises in 12 years

While vacationers set sail for a getaway on the high seas, a highly contagious virus has reportedly been lurking aboard many of their cruise ships. According to the Centers for Disease Control and Prevention, 2024 has seen the highest number of gastrointestinal illnesses reported in 12 years.

The record 1,894 passengers across multiple cruise lines have been affected by 16 outbreaks. And 13 of them were caused by norovirus, including five during the month of December. Other reported causes of illness were E. coli and salmonella.

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Cunard’s Line Queen Mary 2 cruise ship is set to end its voyage Jan. 3, reporting that nearly 13% of its passengers experienced cramps, vomiting and diarrhea due to norovirus.

“In response, enhanced health protocols have been implemented, including additional deep cleaning of public areas and staterooms, and close monitoring by our medical team, to ensure the comfort, health, and well-being of all guests and crew.”

Statement by Cunard Line

The CDC said norovirus cases are rising in the U.S., with peak illness season typically running from November to April, coinciding with the time many people book their cruises.

Each year, the agency estimates norovirus causes 19 million to 21 million illnesses nationwide. On average, more than 100,000 people are hospitalized with the virus.

Crowded, shared environments are prime spots for the virus, making cruises a breeding ground for norovirus through person-to-person contact. The most recent data shows that 2012 was the last year with such a high number of stomach illnesses on cruise ships.

In response, cruise lines impacted by the outbreaks have implemented quarantine measures for sick passengers and stepped up cleaning protocols.