Los Angeles Public Schools will test 700,000-plus students, 75,000 staffers and family members who may have been exposed to the virus must receive COVID testing in order to safely open campuses.

...District administrators believe the 700,000-plus students, 75,000 staffers and family members who may have been exposed to the virus must receive COVID testing in order to safely open campuses. "Over the next several weeks, all staff and students will be provided with an initial, baseline test,'' Beutner said. "We will also provide testing for household members of students or staff who test positive for the virus or those who show symptoms.... Once we're closer to the time when students might return to classrooms, there will be a second round of baseline testing for all.'' Since last Thursday, the district tested more than 2,500 staff members and their children each day with plans to soon test 20,000 people each day. The district has the capacity to eventually test up to 40,000 per day... 

https://www.nbclosangeles.com/news/local/lausd-launches-covid-19-testing-for-students-and-staff/2427831/