The number of people infected with the new coronavirus is estimated to be 4.3% of the total as of March, according to the analysis of the results of the investigation of antibody prevalence conducted by the National Institute of Infectious Diseases in five prefectures. rice field.
The percentage of infected people was high in Tokyo and Osaka prefectures.
The National Institute of Infectious Diseases was held in December last year and during the sixth wave of infection, twice from February to March, in five prefectures: Tokyo, Osaka, Miyagi, Aichi, and Fukuoka. We analyzed the results of investigating the prevalence of antibodies against the new corona in more than 16,000 people.
The laboratory estimated the proportion of infected people from the proportion of people with antibodies that can only be obtained if infected and those who have been diagnosed with the infection, which was 2.5% as of December last year. As of March, it was 4.3%.
By region, 6.4% in Tokyo, 6.1% in Osaka, 3.7% in Aichi, 3.3% in Fukuoka, 2.0% in Miyagi, high in Tokyo and Osaka, and vaccinated at least once. In contrast to 4% for humans, 10% for unvaccinated people was more than doubled.
In the United States, the CDC = Centers for Disease Control and Prevention estimates that nearly 60% of the population has been infected, and Takaji Wakita, chairman of the expert meeting of the Ministry of Health, Labor and Welfare, said, "It can be said that the infection was suppressed to a certain low level in Japan. As few people are immune from natural infections, mitigation of measures may have an impact. "