Quote Originally Posted by Yppej View Post
This is not a double blind peer reviewed study. It is conjecture. It could be that the virus had already run its course.

If masks protect you, why can't people put on a mask and go into the covid wards to say goodbye to their dying relatives? Because it doesn't protect you, that's why.
https://www.preprints.org/manuscript/202004.0203/v1