4 ms·

So what is needed to get to that certainty? What research is being done or must be done?

• cmiles74 6y ago
  Should we even bother, now that masks are becoming easier to purchase?
  • lolc 6y ago
    Given that we're heavily inconvenienced by the masks and other measures, we should find out how well they work so we can focus on the stuff that helps the most.
• jjgreen 6y ago
  No need, mask wearing is not a matter of science, it is theology; would you ask for a proof of God's existence?
• cma 6y ago
  Crowded Brooklyn bridge and other areas during during Floyd protests: lots of mask usage, no uptick in cases. It could just be that outdoors in sunlight is relatively safe though and that had a bigger effect than the masks. Or just even though it looked like huge packed crowds it was still tiny relative to NYC population.