The cruise line - which operates the Diamond Princess cruise liner, where hundreds of those onboard have already tested positive for COVID-19 - began announcing modifications and cancellations to its itineraries as early as last week.
The Diamond Princess has proved a fertile breeding ground for the virus with at least 542 positive cases, and Japan has faced mounting criticism for its quarantine arrangements as the passengers disperse.
The question now is: Why?
They are also requested to follow the Japanese government's health and quarantine protocols. But some experts suggest it may have been less than rigorous. More than 200 people said they wanted to travel to Hong Kong, John Lee, the city's security secretary, said.
'On the plane we were with specialists. very knowledgeable doctors and CDC professionals, ' she said.
Some nations are evacuating their citizens from the ship as infections continue to rise. "I just want to go home and eat Japanese food".
Around 500 people were expected to disembark starting Wednesday, a health ministry official said, with the entire process completed by Friday.
During a Lower House Budget Committee meeting Wednesday, opposition party members criticized the health ministry for lifting the quarantine even as cases of infection continue to be reported aboard the ship nearly every day.
At the time, he believed it was due to "shock", rather than a symptom of the disease.
Passengers being unloaded from another infected ship in Cambodia.
"While some viruses, like seasonal influenza viruses, can spread by aerosols - very small drier droplets that can stay suspended in the air - most viruses are spread better in times of close contact that may bring infected people into closer and longer contact with uninfected people".
A bus carrying passengers from the quarantined Diamond Princess cruise ship
The FCO spokesman said: "We are planning an evacuation flight from Tokyo to the United Kingdom as soon as possible for Britons who are on the Diamond Princess".
"There's no reason this should not have worked it if had been done properly", MacDermott said. "Viruses like these can be spread through the respiratory route", he told Yahoo News UK.
Japan's health ministry said it will coordinate with the Diamond Princess operator to help crew leave the ship.
"I never had a fear of getting infected myself", he said.
"There was nobody in charge of infection prevention as a professional", he added. But he acknowledged that attempting to quarantine more than 3,700 people was logistically challenging.
Foreign pilots at some Chinese airlines have returned to their home countries and are considering other jobs after being placed on unpaid leave as demand falls, affected flight crew told Reuters.
The couple, Lorna said, were 12 days into a 14 day quarantine when they came down with the virus. "Not to do so would be reckless". Other governments picking up passengers have similar policies.
Passengers were initially isolated in their cabins and later allowed to sporadically go out on deck.
Omi said quarantine is one of the measures considered effective early on.
The expert said he was more afraid of catching the virus on board than he had been working in the field during Ebola and Sars outbreaks.
Other scientists said that passengers should have been removed from the ship from the beginning. "It's only morally justified to keep people on the boat if there are no other options". "I'm disappointed, it's like everyone going to a party and leaving you out", she said.