80 percent of Diamond Princess coronavirus patients had mild or no symptoms
Japan Times -- Mar 26
About 80 percent of COVID-19 patients from the virus-hit Diamond Princess cruise ship showed mild symptoms or none at all, according to a report compiled by the Self-Defense Forces Central Hospital.

The Tokyo hospital accepted patients who tested positive for the virus in polymerase chain reaction (PCR) checks on the ship, and gave an analysis of 104 people who agreed to cooperate for the report and its release.

The report is believed to be one of the largest analyses of symptoms caused by the new virus to be compiled in Japan, according to the Defense Ministry, and was posted on the hospital’s website for medical workers.

The proportions of patients who showed no symptoms when hospitalized was 40 percent, as was the proportion who showed mild symptoms, while the remaining 20 percent showed serious symptoms, according to the report.

But it added that computed tomography (CT) scans of the lungs of patients with no or mild symptoms showed that half of them still had abnormalities apparently caused by the virus.

The most common symptom seen when the patients were hospitalized was a fever, followed by coughing.

The average age of the patients was 68. Among them, 48 percent had underlying diseases, with the largest proportion of them experiencing high blood pressure.

News source: Japan Times
May 30
Tokyo Gov. Yuriko Koike announced Friday that phase two of the capital’s three-part plan to peel back coronavirus countermeasures will begin on Monday. (Japan Times)
May 30
The city of Kitakyushu in Japan's southwest said Friday it has been hit by a second wave of coronavirus infections following a recent surge in the number of new cases. (Japan Today)
May 30
The Air Self-Defense Force’s Blue Impulse acrobatics team on Friday performed a flyover over central Tokyo in a show of respect to doctors and medical staff who have been at the forefront of the battle against the coronavirus pandemic. (Japan Times)
May 29
At the beginning of April, a young sumo wrestler known as Shobushi came down with a fever. His coaches tried calling a local public health center to get him a coronavirus test, but the phone lines were busy. (Japan Times)
May 29
NHK has learned that Tokyo Tower will reopen from Thursday, although most visitors will have to take the stairs instead of elevators to access the observation deck. (NHK)
May 29
Police investigators say the arsonist of a Kyoto Animation studio last year has told them that he had thought his attack had left only a couple of people dead. (NHK)
May 29
Nissan Motor has posted its first net loss in 11 years in the business year through March, amounting to more than 670 billion yen, or 6.2 billion dollars. (NHK)
May 28
Mobile phone data shows there was only a slight increase in the number of people around train stations and business streets in Tokyo and four other prefectures the day after the state of emergency was lifted. (NHK)
May 28
Japan's Diet has enacted legislation to tighten regulations on IT giants by requiring them to ensure transparency of their online business transactions with their business partners. (NHK)
May 28
Police in Kyoto, western Japan, have arrested a suspect in last year's deadly arson attack on Kyoto Animation's studio. They say the suspect has admitted that the allegations against him are true. (NHK)