New facts about coronavirus as new cases surge in U.S.

03:45

Dr. Peter Hotez, Dean of the National School of Tropical Medicine at Baylor College of Medicine, talks to Lawrence O’Donnell about new facts we are learning about the coronavirus: more symptoms than previously understood and how the coronavirus “lingers” in the air – and says that until the U.S. successfully interrupts community transmission, the pandemic will continue to “spiral out of control.”