WHO = The World Health Organization announced on the 11th the results of an initial survey by experts on the characteristics and risks of `` XBB.1.5 '', one of the Omicron strains of the new coronavirus that is rapidly spreading in the United States.

According to this, in the United States, in addition to the tendency to be relatively infectious, it seems that the ability to escape immunity obtained from past infections and vaccinations is among the strongest among the mutation strains so far. about it.



On the other hand, there is currently no sufficient data on the susceptibility to severe disease and the effectiveness of current vaccines in reducing severe disease and mortality.



For these reasons, "XBB.1.5" may lead to a global increase in the number of infected people, but the estimation of the strength of infection is based on data from only one country, the United States, so it is We will continue to collect data and conduct evaluations.

According to the CDC = US Centers for Disease Control and Prevention, an estimated 27.6% of the people newly infected with the new corona in the United States in the week ending on the 7th of this month were "XBB.1.5", and an estimated 2.3 as of the 3rd of last month. % is spreading rapidly.



According to the WHO, "XBB.1.5" has been reported from 38 countries between October 22nd and 11th of this year, and more than 80% of them are from the United States.