This Sept. 17, 2020, photo shows a sign for “Authorized Access Only” for visitors to the San Diego State University campus in San Diego, Calif. A coronavirus outbreak of more than 700 cases reported at San Diego State University has put all of San Diego County, with more than 3 million people, at risk of having to close indoor dining and shopping, many for a third time under California guidelines. (AP Photo/Elliot Spagat)