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Re:The science of mask-wearing hasn’t changed, so why have o... by j7ake on Saturday July 04, 2020 @02:32AM (#23730570)
If the virus spread airborne rather than by droplets then you would see the effective R value much greater than what the coronavirus is.

Example: measles is spread airborne and the R value is > 10. Coronavirus R value is < 3

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