While the highly infectious Delta strain spreads, the virus spreads in the home one after another, and in August, one in four people confirmed to be infected in Tokyo had a domestic infection.
In August, 125,606 people were confirmed infected in Tokyo, of which 31,293 were infected at home.
The rate is 24.9%, and about 1 in 4 new positives has a domestic infection.
The percentage of people whose infection route is known was 64.4% last month, exceeding 60% for the first time.
The third wave was 53.7% in January, the fourth wave was 55.5% in May, and the ratio increased in the fifth wave.
This month, it reached 69.0% by the 5th, and there are a number of cases of infection at home.
Depending on the city, once the virus is brought into the home, from parents to children, from children to parents and grandparents, the virus spreads all at once, and in some cases the whole family becomes positive.