What a vague and meaningless thing to say
-
-
More broadly, it's a bit absurd to say that there is no evidence whatsoever influencing the idea that masks may be effective at a population level as a public health intervention
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
-
-
This Tweet is unavailable.
-
If you ran a 240,000 person RCT we could reasonably exclude a benefit of 20% or greater for mask-wearing to the individual, which would probably be quite a significant finding. Excluding 50% or more is largely meaningless
- Show replies
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.