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In November 2021, the transmissibility of the Omicron variant, as compared to the Delta variant or other variants of the COVID-19 virus, was still uncertain. Omicron is frequently able to infect previously COVID-19-positive people.
2021年11月28日 · Preliminary evidence suggests there may be an increased risk of reinfection with Omicron (ie, people who have previously had COVID-19 could become reinfected more easily with Omicron), as compared to other variants of concern, but information is limited.
2021年11月26日 · 世衛組織於2021年底警告說，Omicron變異株疫情可能會讓醫療系統不堪重負，尤其是在疫苗接種率低的國家，死亡率和發病率可能要高得多，世衛組織敦促所有國家加強COVID-19疫苗的接種。
2021年11月27日 · According to official sources, apart from the information on mutant strain involving two cases provided by the HKSAR Government, the Omicron variant has been detected in a number of places including Botswana, South Africa, Israel and Belgium.
2022年11月25日 · The Omicron effect. 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.
THE LATEST ON THE COVID-19 GLOBAL SITUATION & SARS-CoV-2 VARIANT OF CONCERN OMICRON. Current global situation. CASES REPORTED TO WHO AS OF 13 JANUARY 2022 10h CET. Cases: > 315 million. Deaths: > 5.5 million. Cases depicted by bars; deaths depicted by line. CHECK OUT THE LATEST GLOBAL SITUATION. WHO Coronavirus Disease (COVID-19) Dashboard.
2021年12月3日 · On Nov 25, 2021, about 23 months since the first reported case of COVID-19 and after a global estimated 260 million cases and 5·2 million deaths,1 a new SARS-CoV-2 variant of concern (VoC), omicron,2 was reported.
