Chinese doctors who helped treat COVID-19 patients in the central Chinese city of Wuhan share their experience at the front line with their U.S. counterparts.

The U.S. has reported more than 216,500 cases so far, with over 5,100 deaths, according to Johns Hopkins University. In New York City, the worst-hit city in the U.S., the death toll has exceeded 1,300. The coronavirus outbreak has greatly strained medical resources in the U.S. with medical schools considering early graduation to help frontline medics.