CDC Director Robert Redfield said that if the American public does not follow recommended coronavirus mitigation measures, the country could have the worst fall for public health in U.S. history, CNN reports. Said Redfield: “For your country right now and for the war that we’re in against Covid, I’m asking you to do four simple things: wear a mask, social distance, wash your hands and be smart about crowds.” He added: “I’m not asking some of America to do it.