Iznogud
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On the efficacy of wearing masks or scarves from an article in the NY Times...
"When researchers conducted systematic review of a variety of interventions used during the SARS outbreak in 2003, they found that washing hands more than 10 times daily was 55 percent effective in stopping virus transmission, while wearing a mask was actually more effective — at about 68 percent. Wearing gloves offered about the same amount of protection as frequent hand-washing, and combining all measures — hand-washing, masks, gloves and a protective gown — increased the intervention effectiveness to 91 percent."
More Americans Should Probably Wear Masks for Protection (Published 2020)
Experts have started to question whether masks may offer at least some protection to healthy individuals and essential workers.www.nytimes.com
Iz