Dr. Daniel Chow, an assistant professor at UC Irvine, said the rate the virus is spreading at has to be slowed down. “You have to slow this down before we get overwhelmed. You don’t want to wait until we get overwhelmed to slow this down,” Chow said. … Chow, who’s also co-director for UCI’s Center for Artificial Intelligence in Diagnostic Medicine, created a YouTube video explaining the hospital capacity, using an overflowing sink analogy from an earlier interview with Voice of OC. … UC Irvine epidemiologist Andrew Noymer said it’s difficult to pinpoint what exactly caused the explosion in cases because protests, restaurant reopenings and shopping mall reopenings happened at the same time.