A significant rise in coronavirus cases over the past few weeks has led to health officials in Los Angeles County to reinstate a mask mandate in indoor settings. The requirement went into effect over the weekend. Guest: Dr. Bob Wachter, Chair of U.C. San Francisco’s Department of Medicine  As the Tokyo Olympics get underway this week, at least three athletes have already tested positive for the coronavirus at the Olympic Village. Athletes are facing strict health guidelines as they prepare for the Summmer Games. Guest: Brian Burrows, Member of the U.S. Olympic Shooting Team PG&E says its infrastructure may have contributed to the start of the Dixie Fire, which has burned more than 30,000 acres near the site of the deadly 2018 Camp Fire. Guest: Dan Brekke, KQED California’s top election official has released the list of candidates who filed to run for governor in the September recall election. They're looking to replace Governor Gavin Newsom, should voters decide to recall him. Guest: Scott Shafer, KQED Learn more about your ad choices. Visit megaphone.fm/adchoices