Buffets and shared spaces help make cruise ships ideal places for viruses to flourish, disease experts say. Still, Americans are booking cruises in record numbers.

Ambassador Cruise Line's ship Ambition has docked in Boudreaux but no one on board can disembark; experts suspect it has no connection with the hantavirus outbreak that killed…

The ship Ambition was on lockdown in Bordeaux after dozens of people caught a gastrointestinal virus.