“BA.2の2つのケース, オミクロンのサブバリアント, 今月初めにワシントンで検出されました,” ワシントン州保健局のスポークスマンは月曜日にフォックスニュースデジタルに語った.
The spokesperson said that health officials do not have much information on the new subvariant, which has been reported in parts of Europe and Asia.
イギリス health authorities declared BA.2 a “variant under investigation” 金曜日に, それを言って “there is still uncertainty around the significance of the changes to the viral genome.”
Viruses mutate as they spread through a population, with some mutations impacting vaccine effectiveness, as well as the lethality and transmissibility of variants, CDCによれば.
ザ・ World Health Organization said Monday that BA.2 differs from the original omicron strain on the spike protein, emphasizing that the two subvariants should be studied independently to determine “immune escape properties and virulence.”
Two cases of BA.2 have also been detected in Houston, where Dr. Hana El Sahly dubbed it “stealth omicron” since it is harder to pick up on a PCR test, による WOAI.
オミクロン, which was first detected in South Africa in late November, has rapidly spread throughout the world and is now responsible for 99.5% of all new cases in the United States, CDCデータによると.
The 7-day average for new cases throughout the United States was at 686,715 土曜日, down from an all-time high of 789,960 1月に. 15.