Do face masks prevent spread of covid?

Shamalien
https://www.technocracy.news/blaylock-face-masks-pose-serious-risks-to-the-healthy/
Do face masks prevent spread of covid?
Visit the snopes article on this subject if you want a good laugh. The sheer mental backflips they do to attempt to suppress this information... ofc what do you expect when you get the majority of your funding from an ex nazi (george soros).
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Do face masks prevent spread of covid?
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