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【澳洲校园防新冠课程】6-5:口罩 Part 5- Masks and Respirators
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covidsafetyforschools.org 校园防新冠第6课 - 第5节:口罩 6.5节的主要学习内容: 1. 口罩可以降低 → 新冠病毒的近距离 + 远距离传播风险。 口罩通过过滤 → 新冠感染者呼出的空气 + 未感染者吸入的空气, 拦截其中的病毒颗粒,实现新冠传播风险的降低。 2. N95 口罩或 P2 口罩,比外科口罩或布口罩有效得多。 3. 学校需要积极鼓励戴口罩,教职人员需要树立行为榜样, 以消除会妨碍戴口罩的“同伴压力”孤立感、耻辱感…等消极因素。 4. 远低于 100% 的戴口罩比例,也可以显著降低传染风险 字幕 + 翻译:excellent热爱 校对:@布布布布哩噗 https://course.covidsafetyforschools.org/courses/take/COVID-Safety-For-Schools/lessons/52125543-part-5-masks-and-respirators Module 6: How to prevent COVID spreading in schools Part 5: Masks and Respirators Key learnings: Masks can reduce the risk of short-range and long-range COVID transmission. They do this by filtering viruses out of the air being exhaled by people infected with COVID, and being inhaled by uninfected people. N95 or P2 masks are much more effective than surgical masks or cloth masks. Schools need to actively encourage mask-wearing, and staff need to model this behaviour, in order to overcome the stigma that prevents many from wearing masks. Significant risk reduction is possible even with much less than 100% mask-wearing. Links to referenced articles / papers: Schools where all students wore masks had a 70% reduction in aerosols: https://journals.plos.org/plosmedicine/article?id=10.1371/journal.pmed.1004226 Each 10% increase in mask-wearing led to a 47% decrease in COVID cases: https://www.healio.com/news/primary-care/20230222/wastewater-study-finds-masks-prevent-covid19-in-schools Effectiveness of N95 masks vs surgical masks: https://www.axios.com/2022/01/11/n95-mask-protection-covid Additional resources: Surprising mask math: Why Masks Work BETTER Than You'd Think: https://www.youtube.com/watch?v=Y47t9qLc9I4 The Astounding Physics of N95 Masks: https://www.youtube.com/watch?v=eAdanPfQdCA Module last updated: January 2024
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