April 8, 2020 Update

Masks Do Reduce Spread of Flu and Some Coronaviruses, Study Finds

https://www.nytimes.com/reuters/2020/04/03/world/asia/03reuters-health-coronavirus-masks-science.html?searchResultPosition=3

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To Curb the Coronavirus, Hong Kong Tells the World Masks Work

https://www.wsj.com/articles/to-curb-the-coronavirus-hong-kong-shows-the-world-masks-work-11586338202

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Answers to Your DIY Face Mask Questions, Including What Material You Should Use

https://www.washingtonpost.com/health/2020/04/07/answers-your-diy-face-mask-questions-including-what-material-you-should-use/?arc404=true

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Coronavirus Face Masks: Everything You Need to Know

https://www.huffpost.com/entry/coronavirus-face-masks-everything-you-need-to-know_l_5e8ca647c5b6e1a2e0faa947

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Strategies for Optimizing the Supply of Facemasks

https://www.cdc.gov/coronavirus/2019-ncov/hcp/ppe-strategy/face-masks.html