Experts: Cruise ships no place for a coronavirus quarantine

Cruise ships hit by coronavirus outbreaks have quickly found themselves with no ports for thousands of passengers as countries on four continents have quarantined vessels or kept them at sea for days.Keeping all the passengers on board instead of letting them disembark on land is a strategy that can backfire, however, according to experts, because the ventilation systems and close quarters of cruise ships make them ideal places for illness to jump from one person to the next.“They’re