456K views · 3.3K reactions | Homemade cloth face masks likely need a minimum of two layers, and preferably three, to prevent the dispersal of viral droplets from the nose and mouth, a video case study indicates. https://cnn.it/32Qes5K | CNN | Facebook
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The Evolving Science of Face Masks and COVID-19 - FactCheck.org
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When we all wear masks, it reduces the amount of particles spreading through the air, and therefore, helps us all slow the spread of COVID-19. Masks trap particles that come out of our nose and mouth and keep them from spreading to those that are near us. If a person is healthy, these particles don’t contain any virus, and wouldn’t make others sick. If you’re sick with COVID-19, your particles could infect those around you. What makes COVID-19 hard to control is that many people don’t show sympt
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12M views · 123K reactions | WHO updated guidance on the use of masks for control of COVID-19: https://bit.ly/2AJYSMS The new guidance is based on evolving evidence and provides updates on: who should wear a mask when a mask should be worn what a mask should be made of | World Health Organization (WHO) | Facebook
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