An expert meeting of the Ministry of Health, Labor and Welfare provides data that analyzes how many people were staying in major downtown areas nationwide as one of the indicators to estimate the future infection situation.
In Tokyo, the number of people has been increasing for 4 consecutive weeks, and it is necessary to pay attention to the rebound = re-spread of infection.
This data, called "retained population," was presented at an expert meeting of the Ministry of Health, Labor and Welfare held on the 9th by Director Atsushi Nishida of the Tokyo Metropolitan Institute of Medical Research Center for Social Health Medicine.
For major downtown areas in areas where emergency declarations have been issued and priority measures such as spread prevention have been applied, the location information of mobile phones obtained in a non-personally identifiable manner is used to determine the workplace and movement patterns. We analyze the number of people who stayed for more than 15 minutes outside of their homes on a 500-meter mesh hourly.
Both are based on data up to June 6th.
State of emergency 10 prefectures
▽ In Tokyo, we are investigating seven downtown areas such as Shinjuku, Shibuya, and Roppongi.
The resident population has been increasing for four consecutive weeks, increasing by 32% at night and 26% during the day compared to the second week, which was the lowest since the state of emergency was declared.
Since the increase is conspicuous from around the 1st of this month when the declaration was extended, if the increase trend continues as it is, there is a possibility of rebound, and caution is required.
▽ Osaka Prefecture is the data of 7 downtown areas such as Kita and Minami.
Compared to last week, the population staying at night and daytime has increased, and the increase in daytime has been remarkable since the declaration was extended.
At night, it remains about 10% lower than the lowest value for the second state of emergency.
▽ In Hyogo Prefecture, the population staying at night has been maintained at a level lower than the minimum value at the time of the second declaration for the fifth consecutive week since the second week after this state of emergency declaration.
The daytime population has been increasing since the third week after the declaration.
▽ In Kyoto Prefecture, the number of people staying at night has increased significantly since the declaration was extended on the 1st of this month.
Daytime has continued to increase since the third week of declaration.
▽ It is Aichi prefecture where the state of emergency was declared on the 12th of last month.
The population staying in the area has been increasing for two consecutive weeks both at night and in the daytime, and at night it exceeds the minimum value at the time of the previous declaration.
▽ Fukuoka Prefecture, where a state of emergency was declared on the 12th of last month.
The nighttime population remains low, but has increased slightly in the last week.
Daytime has increased significantly in the last week.
▽ It is Okayama prefecture where an emergency declaration was issued on the 16th of last month.
The resident population has declined significantly during the night and evening hours, below the minimum of the first declaration last spring.
▽ Hiroshima Prefecture, where a state of emergency was declared on the 16th of last month.
The resident population continued to decline both at night and during the day, but it has begun to increase at night.
▽ Similarly, Hokkaido was declared a state of emergency on the 16th of last month.
The population staying at night continues to decline.
On the other hand, in the daytime, it has been flat since the second week of the declaration.
▽ Okinawa Prefecture was declared a state of emergency on the 23rd of last month.
After the declaration was issued, the resident population has continued to decline both at night and during the day.
The decrease from the evening to the night after 4 pm is remarkable.
Areas to which priority measures such as spread prevention are applied
Next is the area where priority measures such as prevention of spread are applied.
▼ Kanagawa Prefecture, where priority measures were applied on April 20th.
Since the Golden Week holidays in May, the population staying at night and daytime has remained almost unchanged.
▼ Similarly, it is Chiba prefecture where the priority measures were applied on April 20th.
In the first week after the Golden Week holidays, the population staying in the area increased both at night and during the day, but it has remained flat since then.
▼ Saitama Prefecture, where priority measures were applied on April 20th.
The population staying at night has remained flat since the Golden Week holidays, but the increase is remarkable during the day.
▼ Gifu prefecture.
Since the priority measures were applied on May 9, the population staying at night and day has decreased, falling below the minimum value at the time of the second declaration.
It continues to maintain low levels both day and night.
▼ It is Mie prefecture.
The population staying at night and day is increasing.
▼ In Gunma and Ishikawa prefectures, the number of people staying at night has been declining since the priority measures were applied on the 16th of last month.
It has been flat during the day.
▼ Kumamoto prefecture.
Since the 16th of last month, when the priority measures were applied, the population staying at night has been flat at a low level, but the increase is remarkable during the day.
After the expert meeting, Chairman Takaji Wakita, who was interviewed by the press, said, "The infection status and the resident population are linked, and the data reflects the feeling that if the infection status improves, it's about time." It has been pointed out that the situation in Tokyo is similar to that in March because the previous and second emergency declarations were lifted, so it is necessary to be careful about the re-expansion of infection in the future. " ..