COVID September 3, 2021 6:38 pm Half of New COVID Infections Are in School Sports It puts some of the leagues in limbo. John Cádiz Klemack reports for the NBC4 News on Friday, Sept. 3, 2021. US & World Videos 2:42 Executive staff to LA County DA accused of mishandling confidential police files 2:58 UC Irvine students launch solidarity encampments 2:36 Student's mother tries to stop vandalism at USC 3:45 Walkout supporting pro-Palestinian protesters at UCLA 3:22 USC activists request emergency campus student dialogue