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Dragon-Sided D

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Dragon-Sided D

Previous studies to the contrary have been retracted; the simple and obvious good advice is to WEAR A MASK https://www.acpjournals.org/doi/10.7326/L20-0745

A homemade mask using high-thread count cotton catches 70% of virus particles; adding a layer of silk bumps up to 90%
https://www.preprints.org/manuscript/202006.0132/v1

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