All Japan's elementary, junior and high schools will be asked to close from March 2 until their upcoming spring break to help contain the coronavirus outbreak, Prime Minister Shinzo Abe told a task force fighting the virus on Thursday.
The news came after a woman working as a tour bus guide tested positive for the coronavirus for a second time, Osaka's prefectural government said, the first known person in Japan and one of very few worldwide to do so amid growing concerns about the spread of the infection.
The Japanese school year ends in March and resumes in April, after a break.
The number of cases in Japan has now risen to more than 200, up from the official tally of 186 late on Wednesday.
On the main northern island of Hokkaido, 13 new cases, including two under the age of 10, were confirmed, the public broadcaster NHK reported. The western major city of Osaka said it would close all public kindergartens, elementary and junior high schools for two weeks from Feb. 29 to prevent infection.
The government has urged that big gatherings and sports events be scrapped or curtailed for two weeks to contain the virus while pledging that the 2020 Summer Olympics will go ahead in the capital Tokyo.
The more than 200 cases are separate from 704 reported from an outbreak on the Diamond Princess cruise liner that was quarantined off Tokyo earlier this month.
A man in his 80s died in Hokkaido after contracting the coronavirus, the prefectural government said, bringing the total number of people who have died in Japan to eight, including four from the ship.
Though a first known case for Japan, second positive tests have been reported in China -- one reported on Feb. 21 -- where the disease originated late last year.
The outbreak has spread rapidly and widely, infecting about 80,000 people globally and killing nearly 2,800, the vast majority in mainland China.
The woman, a resident of Osaka, in western Japan, tested positive on Wednesday after developing a sore throat and chest pains, the prefectural government said in a statement, describing her as being in her 40s. She first tested positive in late January and was discharged from hospital on Feb. 1 after recovering, according to the statement.
Health Minister Katsunobu Kato said in parliament the central government would need to review patient lists and keep tabs on the condition of those previously discharged, as health experts analyzed the implications of testing positive for the virus after an initial recovery.
"Once you have the infection, it could remain dormant and with minimal symptoms, and then you can get an exacerbation if it finds its way into the lungs," said Philip Tierno Jr., Professor of Microbiology and Pathology at NYU School of Medicine.
Tierno said much remains unknown about the virus. "I'm not certain that this is not bi-phasic, like anthrax," he said, meaning the disease appears to go away before recurring.
Asked to comment on prospects for the Olympic Games going ahead in Tokyo this summer, Tierno said, "The Olympics should be postponed if this continues ... There are many people who don't understand how easy it is to spread this infection from one person to another."
Scaling down events
Japan has changed its strategy in combating the contagion, seeking to slow its spread and minimize the number of deaths.
The health ministry said on Thursday that with the Diamond Princess still located south of Tokyo, about 240 foreign and Japanese crew members who have tested negative for the virus would disembark from the ship over the next few days.
Those with no symptoms would remain at a facility near Tokyo for further monitoring, the ministry said in a statement. An official could not immediately confirm the total number of crew on board the ship.
As part of the attempts to contain the outbreak, Tokyo Olympics officials are considering scaling down the torch relay, Tokyo 2020 CEO Toshiro Muto said on Wednesday.
The government is also considering scaling back this year's March 11 memorial ceremony for victims of 2011's massive earthquake and tsunami, Chief Cabinet Secretary Yoshihide Suga told reporters on Thursday.
In the private sector, Japan's biggest trading firm, Mitsubishi Corp, said it was telling all of its 3,800 staff in the country to work from home for two weeks starting Friday, while a major Japanese bank reported an employee had tested positive for coronavirus.
MUFG Bank, part of Mitsubishi UFJ Financial Group Inc , the country's largest lender by assets, said a member of staff at a branch in central Aichi prefecture, had been confirmed to have the virus on Wednesday.