It's the second Holland America Line ship to have dozens of passengers fall ill this month, according to the CDC.

Nearly 90 passengers and crew members aboard a cruise ship that left from Florida have fallen ill with norovirus.

The P&O Iona ship was hit with a 'nightmare' wave of illness, but why does norovirus spread like wildfire on cruises?

One passenger aboard the P&O Iona travelling around the North Sea told Sky News that “people have been dropping like flies” as a “large number” of guests and staff were experiencing symptoms. "People [were] throwing up in restaurants, on decks, outside cabins," the passenger said.

A cruise ship docked in Fort Lauderdale's Port Everglades on Friday after an outbreak of norovirus affected more than a hundred passengers.

Passengers have been "dropping like flies" aboard the P&O cruise ship, owing to a suspected norovirus outbreak, a report in Sky News has claimed. The P&O Iona, carrying 5,000 guests and 1,800 staff members is currently passing Belgium on a seven-day cruise across northern Europe.

The P&O Iona - which has capacity for 5,000 passengers - recently returned to the UK after making its way around Northern Europe on a week-long cruise after setting sail from Southampton on February 1