2021年11月28日 · At the present time, WHO is coordinating with a large number of researchers around the world to better understand Omicron. Studies currently underway or underway shortly include assessments of transmissibility, severity of infection (including symptoms), performance of vaccines and diagnostic tests, and effectiveness of treatments.

2022年11月25日 · Omicron was quickly identified as being significantly more transmissible than Delta, the preceding variant of concern. Within 4 weeks, as the Omicron wave travelled around the world, it replaced Delta as the dominant variant.

Omicron is rapidly replacing Delta everywhere, with faster replacement effects than ever seen before in the pandemic. Omicron appears to show preference for infecting and replicating in the upper respiratory tract, compared to Delta and other …

Omicron (B.1.1.529) is a variant of SARS-CoV-2 first reported to the World Health Organization (WHO) by the Network for Genomics Surveillance in South Africa on 24 November 2021. [10] [11] It was first detected in Botswana and has spread to become the predominant variant in circulation around the world. [12]

奥密克戎（英文名：Omicron，编号：B.1.1.529），2019新型冠状病毒变种。最早于2021年11月9日在南非首次检测到。最长潜伏期是8天。2021年11月26日，世界卫生组织将其定义为第五种“关切变异株”，取名希腊字母Omicron（奥密克戎）变异株。

Contact tracing and quarantine in the context of the Omicron SARS-CoV-2 variant: interim guidance, 17 February 2022. World Health Organization. https://iris.who.int/handle/10665/351949. License: CC BY-NC-SA 3.0 IGO

The omicron variant of SARS-CoV-2, B.1.1.529, was added to the World Health Organization (WHO) list of variants of concerns (VOC) on 26 November 2021 [1–3]. The WHO Technical Advisory Group on Virus Evolution identified omicron as a divergent SARS-CoV-2 variant with 26 to 32 mutations in the viral spike (S) protein [3.4].

2021年11月29日 · In a technical brief issued Sunday, the WHO warned its 194 member states that the new variant's numerous mutations "may confer immune escape potential and possibly transmissibility advantage," and...

2021年11月29日 · The World Health Organization (WHO) has warned that the Omicron coronavirus variant poses a high risk of infection surges around the globe. The variant could …

2021年11月26日 · Based on the evidence presented indicative of a detrimental change in COVID-19 epidemiology, the TAG-VE has advised WHO that this variant should be designated as a VOC, and the WHO has designated B.1.1.529 as a VOC, named Omicron. As such, countries are asked to do the following: