It's quick and easy to access Live Science Plus, simply enter your email below. We'll send you a confirmation and sign you up for our daily newsletter, keeping you up to date with the latest science news.
Nearly 500 passengers aboard the Diamond Princess cruise ship — where the new coronavirus is spreading — were allowed to disembark the vessel today (Feb. 19) after officials declared that those passengers had successfully completed a two-week quarantine.
However, some experts are concerned that this quarantine was not effective and that the released passengers may not be free of the virus, according to news reports.
The beleaguered ship has been under quarantine and docked in Yokohama, Japan, since Feb. 3, with some 3,700 passengers and crew on board. But during that time, 621 passengers have been infected with the new coronavirus, leading to worries that measures to prevent the spread of the virus on the ship were not adequate.
Indeed, the U.S. Centers for Disease Control and Prevention (CDC) announced on Tuesday (Feb. 18) that all passengers and crew still on the ship would not be allowed to return to the U.S. for at least 14 days after leaving the ship. (The CDC has already evacuated several hundred American passengers from the ship, and those passengers are currently under quarantine at U.S. military bases.)
"While the [ship] quarantine potentially conferred a significant public health benefit in slowing transmission, CDC's assessment is that it may not have been sufficient to prevent transmission [of coronavirus] among individuals on the ship," the agency said in a statement. "CDC believes the rate of new infections on board … represents an ongoing risk."
What's more, a Japanese infectious-disease specialist who visited the ship has reported that measures to control viral spread on board were "completely chaotic," according to The New York Times. With regard to the passengers leaving the ship today, "I would not be surprised if they spread infections," the specialist, Dr. Kentaro Iwata, of Kobe University, told the Times.
However, Japanese officials said that they "made the maximum consideration to secure the health of passengers and crew," the Times reported.
Sign up for the Live Science daily newsletter now
Get the world’s most fascinating discoveries delivered straight to your inbox.
Still, Japan's health minister, Katsunobu Kato, urged passengers leaving the ship to limit their public outings and to monitor their health in the following days, according to the Times.
More passengers are set to leave the ship in the next few days.
With impressive cutaway illustrations that show how things function, and mindblowing photography of the world’s most inspiring spectacles, How It Works represents the pinnacle of engaging, factual fun for a mainstream audience keen to keep up with the latest tech and the most impressive phenomena on the planet and beyond. Written and presented in a style that makes even the most complex subjects interesting and easy to understand, How It Works is enjoyed by readers of all ages.
Rachael is a Live Science contributor, and was a former channel editor and senior writer for Live Science between 2010 and 2022. She has a master's degree in journalism from New York University's Science, Health and Environmental Reporting Program. She also holds a B.S. in molecular biology and an M.S. in biology from the University of California, San Diego. Her work has appeared in Scienceline, The Washington Post and Scientific American.
Live Science Plus
