What is Omicron?

Omicron (English name: omicron, serial number: B.1.1.529), a variety of novel coronavirus in 219. It was first detected in South Africa on November 9, 221. The longest incubation period is 8 days.

On November 26th, 221, the World Health Organization defined it as the fifth "mutant of concern", named as the Greek letter Omicron mutant]? . On November 29th, WHO said that the overall risk assessment of Covid-19 Omicron mutant strain in the world was "very high", and it may spread widely in the world? . On December 9th, Reference News published a report on the website of the British newspaper The Guardian that scientists found an "invisible version" of Omicron strain that was more difficult to track. On January 4th, 222, WHO said that before the Christmas and New Year holidays, 128 countries and regions had reported the discovery of Omicron mutant.

On March 1th, 222, it was reported that all the infected viruses reported in Beijing, Shanghai, Shandong, Shaanxi and other places had Omicron mutant strains. In addition, the Shanghai epidemic has spilled over to 71 cities in 21 provinces including Guangxi.

on March 21st, 222, pharmaceutical giant AstraZeneca said that the results of an independent laboratory study showed that its antibody cocktail therapy for preventing and treating Covid-19 could effectively fight against Omicron variants (including the highly contagious BA.2 subtype variant). The data showed that this therapy named Evusheld significantly reduced the number of viruses of all Omicronya variants detected in mouse lung samples. The treatment is under review in Europe and has been approved in the United States. On May 12th, 222, Korean Central News Agency reported that there was a case of Omicron infection with COVID-19 mutant virus in North Korea. In December, among the newly infected people with COVID-19 virus in Wuhu City, the evolutionary branch of Omicron mutant BF.7 was found and reported for the first time, which was imported from other provinces.