Mask Utility News Today

We dont do that many randomized trials. during the pandemic, it would have been knowingly masking some people, not masking others and seeing what happens. public health experts wont do that because they have masking will have benefit. what did you find in places around the country where they were using masks and you compare them to where there were no mask mandates and you find a distinctive difference. that is a way of looking at this more globally. there was a huge randomized clinical trial. 3...