Dr. Joseph Varon, center, visits with Dorothy Webb, left, and her daughter, Tammie, while making his rounds inside the Coronavirus Unit at United Memorial Medical Center, Monday, July 6, 2020, in Houston. Varon says he has worked more than 100 days with barely a rest and normally sleeps just a few hours a night. When he isn't seeing patients or trying to obtain more hospital supplies, he does media interviews to try to warn people to wear masks and take the virus seriously. (AP Photo/David J. Phillip)