现在新冠病例还在继续攀升,戴口罩可以高效地切断新冠传播:
患者戴口罩-减低95%的传染
非患者戴口罩-保护作用70%
全民戴口罩-1.5%传染概率 (避免了98.5%的传染)
预防总是强于治疗,防患于未然。戴口罩虽然low-tech, low cost, 但是非常高效!
现在新冠病例还在继续攀升,戴口罩可以高效地切断新冠传播:
患者戴口罩-减低95%的传染
非患者戴口罩-保护作用70%
全民戴口罩-1.5%传染概率 (避免了98.5%的传染)
预防总是强于治疗,防患于未然。戴口罩虽然low-tech, low cost, 但是非常高效!
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