Masks save lives: Here's what you need to know - Harvard Health
https://www.health.harvard.edu/blog/masks-save-lives-heres-what-you-need-to-know-2020111921466
WEBJan 15, 2022 · Evidence shows that mask-wearing can help reduce spread of COVID-19 infections, keep waves of serious illness from overburdening our hospitals, and save lives. Masks also help protect us against other viruses that spread through the air, such as colds and flu. Which types of masks are best and how to ...
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