The Centers for Disease Control and Prevention on Thursday raised its Covid-19 warning level for cruise ships to 4, the highest, and issued a blunt warning: “Avoid cruise travel regardless of vaccination status.”
The move came as the number of outbreaks on ships has grown in recent weeks, causing some ports to turn away ships. Last week, dozens of people on a Royal Caribbean International ship tested positive after it set sail from Fort Lauderdale, Fla., and a Carnival Cruise Line ship returned to Miami on Sunday after positive tests among “a small number on board.”
Calling the C.D.C.’s decision “perplexing,” the cruise industry’s trade group, Cruise Lines International Association, said in a statement that the number of cases onboard made up a very slim minority of the total population and that “the majority of cases were asymptomatic or mild in nature, posing little to no burden on medical resources onboard or onshore.”
Before the C.D.C.’s warning on Thursday, Royal Caribbean Group, one of the biggest cruise companies, said its ships had carried 1.1 million guests since it had restarted U.S. operations in June, with 1,745 people testing positive. While the majority of passengers had mild or no symptoms, 41 people were hospitalized.