“Masks work? NO,” Atlas, a radiologist with no background in infectious diseases or public health, tweeted Saturday. The post cited the World Health Organization as having said that the “widespread use” of masks is not supported — an interpretation that experts have disputed.
In a follow-up tweet, he said that masks should be used when close to others, especially those who are high risk. He added that there should not be widespread mask mandates, something that other infectious disease experts have advocated.