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That’s basically why all studies on whether masks are useful (this is not a first epidemic, not even a first coronavirus epidemic) are inconclusive.
by LudwigNagasena 6y ago
That’s basically why all studies on whether masks are useful (this is not a first epidemic, not even a first coronavirus epidemic) are inconclusive.
- irq11 6y agoNot really. Randomized controlled trials have been done. The experiment isn’t unethical - it’s just that it hasn’t been done often because all of the other, less-complicated experiments, also show very little effect.
- LudwigNagasena 6y ago>Randomized controlled trials have been done. Do you have any examples?