Study suggests that N95 masks are no more effective in protecting against covid-19 than surgical masks. This is wrong conclusion to draw, and can have dangerous consequences. A lot of health-care workers — and the public at large — would be happy with this reduced risk. Study’s limitations include the fact that participants were mostly in Egypt and Pakistan during the pandemic. Some people might need to wear a mask in some settings, not because they want to but because it’s required.
