@WesPegden @dave_andersen Not when they're correlated. If masks go on when and where case rates go up, where there is more spread, where there is more testing to identify cases, etc., then not much effect. You might see more, even many more cases in THAT same situation without masks, but there's no data.
@WesPegden@dave_andersen当它们相互关联时就不是了。如果口罩在病例率上升的时间和地点、传播更广的地方、识别病例的测试更多的地方等，那么效果不会太大。在没有口罩的情况下，你可能会看到更多甚至更多的病例，但没有数据。