The spread of the new coronavirus infection this winter accelerated at the year-end party at the end of the year, and the number of people in the downtown area after 9 pm, which leads to eating and drinking, seems to have been particularly affected, according to an analysis compiled by a government subcommittee. I understand.


It is necessary to prevent the spread of infection by not increasing the number of people during this time.

The government subcommittee summarized the results of an analysis by experts and the Cabinet Secretariat on the factors and effects of countermeasures that spread in the third wave of the spread of infection this winter, based on data on people and topics on social media. I did.

Looking at the relationship between the number of people and the number of infected people, when a request was made in November last year to shorten the business hours of restaurants to 10 pm, it was in the entertainment district. The number of people at night did not decrease, and the number of newly infected people increased.



After that, the number of infected people increased sharply at the end of the year, and after a state of emergency was declared in January and a request was made to shorten the business hours until 8 pm, the number of people was 9 pm. Has dropped to about half the level of last December, and the number of new infections has dropped sharply.

In Osaka Prefecture, the number of newly infected people decreased until mid-December as the number of people in the entertainment district decreased at night after a request to shorten business hours to 9 pm was issued in late November last year. Did.



After that, the number of people at night and the number of newly infected people increased once at the beginning of the year, but the number of infections began to decrease after the state of emergency was declared.

Both "increase" and "decrease" are particularly affected by the number of people after 9 pm

The subcommittee believes that the number of people after 9 pm, which leads to eating and drinking, had a particular effect on the status of infection, whether the number of infected people increased or decreased.

In addition, based on the number of tweets including words such as "year-end party" and "karaoke" and data on the number of people, how much was involved in the spread of infection from the beginning of December last year to the beginning of January, "contribution rate" According to statistical analysis, the contribution rate of "year-end party" was 44% in Tokyo, 53% in Osaka, "karaoke" was 29% in Tokyo, and 30% in Osaka. It is highly possible that it was a factor that accelerated.

Information on "increased number of infected people" For the effect of self-restraint ...

The analysis also looks at what affected people's behavior, and since last fall, even if the number of newly infected people announced daily increases significantly, the number of infected people after that is unlikely to decrease. It is said that the effect that the information that the number of infected people increases leads to self-restraint of behavior is decreasing.

In response to this analysis result, the subcommittee said that the request to the restaurant to shorten the business hours until 8 pm was effective in reducing the number of newly infected people, and did not increase the number of people after 9 pm. That is necessary to prevent the spread of the infection.