The effectiveness of cloth masks has been misrepresented by #Masks4All

I recently advised caution about COVID-19 research performed by people without a background in infectious diseases. Some people hated that advice. I’m going to show an example of why it matters. In recent weeks, entrepreneur Jeremy Howard has led the #Masks4All campaign to make it mandatory to wear cotton face masks in public. Howard claimsContinue reading “The effectiveness of cloth masks has been misrepresented by #Masks4All”