According to the news of the Shenzhen Municipal Health Commission in the early morning of February 19, the Shenzhen Municipal Center for Disease Control and Prevention has completed the whole genome sequencing of the new coronavirus in the "0213" epidemic case 1-14, and the results are all Omi kerong variants (BA.2 evolutionary branch), combined with epidemiological investigations, indicating the same chain of transmission.
According to WHO, Amikeron has developed several subtype variants, including BA.1, BA.1.1, BA.2 and BA.3, and the BA.2 genome was first discovered in a sample submitted on 27 November 2021. Recently, the proportion of BA.2 subtypes has increased significantly recently, and as of February 1, 57 countries and regions have submitted BA.2 genome sequences to the platform. As of 14 February, the sub-variant strain has become the main epidemic strain in 10 countries and territories.
According to incomplete statistics from Health Times, according to the results of gene sequencing that have been released so far, 4 indigenous cases of Omiljung BA.2 have been reported in the mainland in the past week.
Pictured from the Shenzhen Health Commission
Shenzhen, Guangdong Province: All three outbreaks had the Aomi Kerong subtype BA.2 variant
According to the Shenzhen Municipal Health Commission, the Shenzhen Municipal Center for Disease Control and Prevention is fully carrying out genetic sequencing of the three epidemics of "0213", "0215" and "0216", and the genome sequencing of its completed cases is the Olmi kerong variant. thereinto:
"0213" outbreak: Whole genome sequencing of the new coronavirus in cases 1-14, the results are all Omi kerong variants (BA.2 evolutionary branch).
"0215" outbreak: "The whole genome of the new coronavirus in case 1 was sequenced, and the result was the Omikeron variant (BA.2 evolutionary branch).
"0216" outbreak: The whole genome of the new coronavirus in cases 1 and 2 was sequenced, and the result was the Omikejong variant (BA.2 evolutionary branch).
Guangzhou, Guangdong: One case was infected with the Aomi Kejung subtype BA.2 variant
Guangzhou added a new locally confirmed case on February 16, which is a close contact of two confirmed cases imported from abroad announced on the 15th. According to the press conference on the 17th, the time that this case was contacted with case 1 and case 2 and detected positive for nucleic acid was less than 2 days, and the intergenerational transmission speed was very fast. The gene sequencing results of case 1 showed the Omikejong BA.2 strain.
Ruili, Yunnan: All three cases were infected with the Aomi Kerong subtype BA.2 variant
According to the news on the official website of Ruili Municipal People's Government on February 18, after genetic sequencing, the three cases of new coronavirus detected in Ruili City on February 16 belonged to the Omicron variant (BA.2 evolutionary branch).
Earlier, according to the news of The Yunnan Health Commission on February 17, from 0:00 to 24:00 on February 16, 1 local confirmed case of new crown pneumonia and 2 cases of asymptomatic infected people were found in the routine nucleic acid testing and regular nucleic acid testing of key populations in Ruili City.
Hekou County, Honghe Prefecture, Yunnan: One case infected with the Aomi Kerong subtype BA.2 variant
According to the news of the Leading Group Headquarters of the Leading Group for the Prevention and Control of the New Crown Pneumonia Epidemic in Hekou County on February 19, after genetic sequencing, one case of the new coronavirus detected in Hekou County on February 17 belongs to the Omikejong variant (BA.2 evolutionary branch).
WHO: 30% increase in infectivity of the Semikjung subtype BA.2 variant
On February 15, local time, WHO pointed out in the weekly epidemiological report of new crown pneumonia that early research data showed that the Aumi kerong subtype BA.2 variant was more easily transmitted. Based on danish epidemic data, the sub-variant was 30% more contagious than the original Strain of Omikeron, BA.1, but the severity of the disease it caused was no different from that of the original Omikeron strain.
Editor-in-charge: Ren Xuan
Proofreader: Zhao Mengmeng
