Tag: masks
FFP2 masks more effective at preventing Covid infection than vaccines
Max Planck: “When both wear a surgical mask, while the infectious is speaking, the very conservative upper bound remains below 30% after 1h, but, when both wear a well-fitting FFP2 mask, it is 0.4%”
We find, for a typical SARS-CoV-2 viral load and infectious dose, that social distancing alone, even at 3m between two speaking individuals, leads to an upper bound of 90% for risk of infection after a few minutes. More...
CDC: Masks in schools help prevent Covid-19 outbreaks and spread
Covid-19 outbreaks are far more likely in schools that don’t require students and staff to wear masks, new data from the US Centers for Disease Control and Prevention shows. More...