Let’s look at the actual study, shall we, as this is some fine cherry picking. https://www.unboundmedicine.com/medline/citation/25903751/A_cluster_randomised_trial_of_cloth_masks_compared_with_medical_masks_in_healthcare_workers_ … https://twitter.com/talialikeitis/status/1264364974497021954 …
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Finally, without a no mask control (which arguably would have been unethical), you can’t conclude that cloth masks are ineffective, only that they’re *less* effective than paper medical-grade masks, which we knew already anyway.
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