@PPC96784706 @JeromeAdamsMD @libertarian1231 @sdbaral It's a much more contagious and much deadlier disease and masks are less than 100% effective is all that is needed to answer this.
@PPC96784706 @JeromeAdamsMD @libertarian1231 @sdbaral 这是一种更具传染性和致命性的疾病，而口罩的有效性低于 100% 就可以回答这个问题。