Regarding the "BA.2" strain of virus, which is one of the Omicron strains of the new coronavirus and is said to be more infectious, the National Institute of Infectious Diseases said that 93% of the domestic virus will become this virus in the first week of next month. We have summarized the estimation results that will be replaced.
This was shown at an expert meeting of the Ministry of Health, Labor and Welfare held on the 6th of this month by Motoi Suzuki, director of the Epidemiology Center for Infectious Diseases, National Institute of Infectious Diseases.
Based on the results of an extraction survey of two domestic inspection companies, we analyzed the ratio of "BA.2" to all Omicron strains nationwide, and found that 93% of them were "BA" in the first week of next month. It is estimated to replace ".2" and 100% in the first week of June.
According to the materials of the expert meeting, "BA.2" is said to be more infectious than "BA.1", which has been the mainstream until now. It means that the number of people is increasing in some countries.
Director Suzuki said, "The next" 7th wave "is expected to be" BA.2 ". Although the aggravation rate of the Omicron strain is decreasing, the elderly will be further inoculated for the third time. It is also necessary to decide on this and the fourth policy. "