New virus after mid-month Last month, more than 10 cases of onset are on March 5 at 23:01
Investigating the day when symptoms such as fever and cough developed on NHK for those who were confirmed to be infected with the new coronavirus, the number of cases exceeding 10 has increased significantly since the middle of last month. I understand.
When looking at the status of infectious disease epidemics, it is necessary to draw data on the number of people infected each day by date and draw a "epidemic curve".
NHK was confirmed to be infected by the new coronavirus by 10:30 am on October 5 except for those who returned on a charter aircraft or those who developed on a cruise ship based on announcements from the Ministry of Health, Labor and Welfare and prefectures. Of these, 278 people with known dates of onset were summarized.
According to the report, the first known case in Japan to date has been confirmed on January 16 in a Chinese male whose infection was confirmed on January 16th.
Thereafter, sporadic up to three people a day, mainly Chinese tourists, occurred during January.
However, in February, the number of people who seemed to become infected in the country began to increase, and 11 people became affected on February 14 on the first day, after exceeding 10 for the first time, Almost every day, it turned out that more than 10 people were affected.
At present, 18 people had the most cases on February 20.
In addition, since February 26, it has been less than 10 people per day, but since the incubation period of the virus is a maximum of 2 weeks, it seems that some people have not yet confirmed infection.
Professor Atsuro Hamada of Tokyo Medical University, who is familiar with infectious diseases, says, "It is important to work on this one or two weeks to prevent a major epidemic.