NEW: Study (not peer reviewed yet) on the severity of those infected with the Omicron Variant compared to the Delta Variant: ⬇️53% less risk of symptomatic hospitalization ⬇️74% less risk of ICU admission ⬇️91% less risk of death 0️⃣Omicron patients required mechanical ventilation The study analyzed 52,297 cases of Omicron and 16,982 cases of Delta within the Kaiser Permanente Southern California healthcare system from November 30，2021, to January 1, 2022, using S gene target failure (SGTF) as assessed by the ThermoFisher TaqPath ComboKit assay as a proxy for Omicron or Delta infection. https://www.medrxiv.org/content/10.1101/2022.01.11.22269045v1
⬇️53% less risk of symptomatic hospitalization ⬇️74% less risk of ICU admission ⬇️91% less risk of death 0️⃣Omicron patients required mechanical ventilation
The study analyzed 52,297 cases of Omicron and 16,982 cases of Delta within the Kaiser Permanente Southern California healthcare system from November 30，2021, to January 1, 2022, using S gene target failure (SGTF) as assessed by the ThermoFisher TaqPath ComboKit assay as a proxy for Omicron or Delta infection.
https://www.medrxiv.org/content/10.1101/2022.01.11.22269045v1
第一个研究“病毒在呼出的空气中存活”的研究（也还没peer reviewed）表明：冠状病毒感染人的能力在通过空气传播后5分钟内开始下降，高湿度情况下病毒在20分钟内失去约90%的感染力。
https://insiderpaper.com/covid-virus-starts-losing-ability-to-infect-within-5-minutes-in-air-study/