We still do not know that cloth masks work, especially not since before the pandemic, otherwise the WHO and CDC would have recommended them. We especially do n

We still do not know that cloth masks work, especially not since before the pandemic, otherwise the WHO and CDC would have recommended them. We especially do not know whether cloth masks reduce personal risk. None of the links given in this overly assertive article show that cloth masks work or that they reduce viral load. All of these are plausible hypotheses and beliefs, but they are still not backed by high quality data.