"Former CDC director Tom Frieden, who oversaw the U.S. response to the 2009 H1N1 influenza pandemic, the 2014 Ebola epidemic and the 2016 Zika epidemic, says that in a worst-case scenario, but one that is not implausible, half the U.S. population would become infected and more than 1 million people would die."

Wash your hands and stay away from crowds if you can.