2.2021165438+1On October 26th, the World Health Organization defined it as the fifth "noteworthy variant" and named it the Greek letter Omicron. 165438+1October 29th, WHO said that the overall risk assessment of COVID-19 Omicron mutant in the world is "very high", and it may spread widely around the world.
3,20211214, according to the website of the United Nations, the Director-General of WHO, Tedros Adham Gay breyer Seuss, revealed that Omicron strains now exist in 77 countries and regions.
On February 9, 2002116, the report "Scientists Found the" Invisible Version "of Omicrovirus" was published.
5. 202 1 12 13. British Prime Minister Johnson confirmed that at least 1 people in Britain have died of Omicrovirus infection.