@ai6yr#UCBerkeley has a COVID dashboard of reported cases & potential exposures (i.e., which buildings did those cases spend time in) in the last 14-day rolling period & it's down to 5 and 7, respectively. They admit that with rapid home testing they're undercounting but the campus has no provision for "tested positive? sick? report it here" and two professors in just my department are regularly borrowing videoconferencing equipment for use with sick students. There must be hundreds altogether.