Comment Comment by mrtksn Actually they did a study on the masks and proved effective.It was done by picking a population of 350K, then separating them to test and control groups, encourage mask for the test group.The results are that at 39% mask use in the test group the covid cases were %12 lower than the control group.There was also a difference between surgical mask(%12) and cloth mask(%9) use.[0] https://twitter.com/Jabaluck/status/1433036933400305673/phot... parent mrtksn 5 years ago
It was done by picking a population of 350K, then separating them to test and control groups, encourage mask for the test group.
The results are that at 39% mask use in the test group the covid cases were %12 lower than the control group.
There was also a difference between surgical mask(%12) and cloth mask(%9) use.
[0] https://twitter.com/Jabaluck/status/1433036933400305673/phot...