The percentage of people with antibodies that can be formed after being infected with the new coronavirus is about 30% in Tokyo and Osaka in the two months from November last year, about five times more than the previous survey from February last year. According to a survey conducted by the Ministry of Health, Labor and Welfare, there was a significant increase in
The Ministry of Health, Labor and Welfare investigated the prevalence of antibodies among more than 8,000 people in five prefectures from November to December last year during the "eighth wave" of infection, and announced the preliminary results on the 8th. I showed it at an expert meeting.
According to it, the rate of possessing the type of antibody that can only be obtained when actually infected with the new corona was 28.2% in Tokyo and 28.8% in Osaka, about five times the previous survey.
In addition, 17.6% in Miyagi Prefecture, 26.5% in Aichi Prefecture, and 27.1% in Fukuoka Prefecture, which is about 9 to 12 times higher than the previous time. , At the time of the survey, it was at the same level as the percentage of the cumulative number of infected people in the population of each region.
In addition, more than 97% of people in all regions had the type of antibody that can be obtained by vaccination, but it should be noted that the Ministry of Health, Labor and Welfare does not necessarily indicate a preventive effect against infection or onset. and
Takaji Wakita, chairman of the expert panel, said, ``In this survey, the antibody prevalence rate has risen significantly even in areas with smaller populations than Tokyo and Osaka. It is low, and if infection control measures are eased more and more in the future, the infection will easily spread in Japan, which may lead to an increase in the number of severe cases and deaths."