COVID-19 variants in analyzed sequences in the United Kingdom 2020-2022

Between July and November 2021, the Delta variant has accounted for for at least 99 percent of the COVID-19 variants analyzed in the United Kingdom. However, in the two-week period up to January 5, 2022, the Omicron variant accounted for around 96 percent of SARS-COV-2 variants detected in the UK. The Omicron variant had been designated by the World Health Organization as a variant of concern in November 2021 and is regarded as more infectious than previous variants.

在2021年7月至11月期间，英国所分析的COVID-19变体中，德尔塔变体占据了至少99%的比例。然而，截至2022年1月5日的两周内，奥密克戎变体在英国检测到的SARS-CoV-2变体中占据了大约96%的比例。奥密克戎变体于2021年11月被世界卫生组织列为需关注的变体，并被认为比之前的变体具有更高的传染性。