Birdwatch Note Rating
2022-12-21 11:18:48 UTC - HELPFUL
Rated by Participant: 300291DD2CC325683052A5613D32FF63BE12006F309741CD5468168EE3B210F3
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Original Note:
Cloth mask use has history going back a century or more. Medical grade masks work best, but a proper cloth mask that is kept clean offers some protection and helps dampen the exhalation of virus containing droplets. Medical grade masks can be expensive and in short supply. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7510705/
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