According to news from Japan’s “Mainichi Shimbun” on the 19th, a confirmed patient with the highly contagious mutant coronavirus “N501Y” appeared for the first time in Yamagata Prefecture, Japan. Japan first detected a mutated coronavirus in December 2020, and the epidemic has continued to spread since then. So far, patients with mutated coronavirus have been detected in 47 prefectures and prefectures across Japan.
Yamagata Prefecture stated that there were three confirmed patients on the 18th and 19th. “N501Y” is a mutated coronavirus found in the United Kingdom, South Africa, and Brazil, and most of the virus spread in Japan is a strain found in the United Kingdom. Japan’s National Institute of Infectious Diseases believes that the “effective reproduction number (indicating how many people each infected person may infect)” of the mutant virus is 1.32 times that of the original coronavirus. According to data from the Ministry of Health, Labour and Welfare of Japan, as of the 13th, the number of patients suspected of being infected with the mutant virus was 3564.
In addition, Kyodo News interviewed relevant people on the 19th and learned that in view of the spread of the mutant strain of the coronavirus, the epidemic situation in Tokyo, Japan has worsened. It is expected that in the second half of this week, it is expected that the Japanese central government is required to issue an emergency declaration.
According to reports, Japan is about to have a long holiday. Tokyo plans to pay attention to the changes in the number of people going out and the number of infections, and on the basis of listening to expert opinions, it is concluded whether to issue an emergency declaration.
According to the report, after Tokyo issued its emergency declaration in January, the average daily number of infections in the past seven days in early March fell to more than 250; but since then, the data has almost been rising, as of April 18, nearly seven days. The average daily number of infected people has reached 586.4, an increase of more than 300 people. The report pointed out that the “N501Y” mutant strain that is spreading in the Kansai region is also increasing in the proportion of infected people.