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by hello_1234 2218 days ago
Most people who contract the virus are asymptomatic, and they spread the virus without even realizing that they have it. It seems quite obvious that if we encourage everyone to wear masks (including the asymptomatic carriers), we can greatly reduce the number of transmissions. We know the virus transmits through airborne droplets, and science is pretty clear that masks reduce the spread of those droplets.
2 comments

Citation needed.

"The importance of these findings is that a drop in oxygen levels (hypoxia) is associated with an impairment in immunity. Studies have shown that hypoxia can inhibit the type of main immune cells used to fight viral infections called the CD4+ T-lymphocyte. This occurs because the hypoxia increases the level of a compound called hypoxia inducible factor-1 (HIF-1), which inhibits T-lymphocytes and stimulates a powerful immune inhibitor cell called the Tregs. . This sets the stage for contracting any infection, including COVID-19 and making the consequences of that infection much graver. In essence, your mask may very well put you at an increased risk of infections and if so, having a much worse outcome."

5 https://pubmed.ncbi.nlm.nih.gov/26179900/

6 https://pubmed.ncbi.nlm.nih.gov/28278498/

7 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3583916/