In the murky world of medical research (slogan: The result you want, guaranteed to the highest bidder), the one shining light has been the Cochrane Collaboration.* Its independent research has endeavored to get as close to the truth as humanly possible without fear or favor, which usually means someone somewhere won’t like the conclusions.
Just recently, the Cochrane researchers pronounced that wearing face masks didn’t stop the spread of Covid-19 or protect you from