Last year, there were 16 outbreaks on cruise ships, from norovirus, salmonella, E. coli or other unidentified pathogens that cause gastrointestinal symptoms such as diarrhea or vomiting. That's the largest number of cruise ship outbreaks in 12 years.

What's sneaky, super contagious and bound to cause diarrhea and vomiting? If you answered "norovirus," you'd be correct. But what is it, and why is it so often associated with cruises?

Norovirus causes an inflammation of the stomach or intestines called acute gastroenteritis, according to the CDC. The virus is “very contagious,” and symptoms include vomiting, diarrhea, stomach pain, fever, headache and others.

Norovirus, often coined the “cruise ship virus,” causes more than 90% of diarrheal disease outbreaks on cruise ships, according to the CDC. Still, norovirus outbreaks on cruise ships account for only a small percentage of all reported norovirus outbreaks.

Departing Southampton on 3 September, the cruise itinerary included docks in New York, Boston, Halifax and Nova Scotia. Norovirus is a highly contagious stomach bug with common sy

Cruise ships dealt with worst year of norovirus cases in over a decade, CDC says. (Scripps News) What to Know About Trudeau’s Resignation 25 actors who are great at playing the worst Biden Signs Social Security Fairness Act: When Do Higher Payments Start?

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