地球，人間煉獄 CLXXXIV(184期) ：
嚴重急性呼吸道症候群冠狀病毒2型-Omicron變異株[3][4]（英語：SARS-CoV-2 Omicron variant），別名B.1.1.529譜系（英語：Lineage B.1.1.529），是嚴重急性呼吸道症候群冠狀病毒2型（SARS-CoV-2）的一種變異株，它於2021年11月9日首次在波札那被發現[5]。2021年11月24日南非正式向世界衛生組織報告[1]。世界衛生組織將本變異株列為「高關注變異株」（VOC）。
美國官員將他們建議人們在感染新冠后所需隔離天數從10天縮短為
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各國政府領導人和顧問們正在評估如何最好地應對快速傳播的奧密克 |
The F.D.A. cleared a second Covid pill, developed by Merck, offering another treatment for high-risk adults.
IN CONTINENTAL EUROPE few people now wear cloth masks as protection against covid-19. Instead, they don surgical or, increasingly, FFP2 masks, a highly efficient medical grade. Meanwhile, in Britain and America, FFP2 coverings are less common. What are these masks, and why are they not more widely used?
FFP stands for “filtering face piece”. It is a European standard for mask efficiency, ranging from one, the lowest grade, to three, the highest. FFP2 masks filter at least 94% of all aerosols, including airborne viruses such as covid-19. America’s N95 and China’s KN95 masks provide similar levels of protection. These disposable masks have several layers of different fabrics, including a polypropylene filter, made by “melt-blowing” polymer to create miniscule, irregular fibre patterns that can trap the smallest airborne particles. A study published in December by the Max Planck Institute, a German research organisation, found well-fitting FFP2 masks reduced the risk of infection with covid-19 to 0.1%. Cloth or medical masks, on the other hand, merely disrupt the airflow of the speaker and trap the largest aerosol particles in their woven material. Their efficacy varies wildly depending on the design and fabric used: tight-fitting, multi-layered masks made from dense materials are much more effective than single-layer linen masks. One study in the Journal of Education and Health Promotion found surgical masks were three times more effective at preventing inhalation of aerosols than homemade cloth ones. Another study, in JAMA Internal Medicine, a journal, compared different cloth masks and found that their efficacy at containing viral particles ranged from 26% to 79%.
地球，人間煉獄 CLXXXI (181期) ：
荷兰从周日早上开始关闭所有酒吧、餐馆、非必需品商店、
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The Omicron coronavirus variant has been reported in 89 countries and the number of cases is doubling in 1.5 to 3 days in areas with community transmission, the World Health Organization (WHO) said on Saturday.
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公共衛生官員正在爭論何時改用 sotrovimab，這是一種對 omicron 保持療效的單克隆抗體治療方法。
由於 omicron 變種威脅要消滅單克隆抗體，美國正在儲備一種仍然有效的抗體
華盛頓郵報
