FILE - In this Aug. 3, 2019, file photo, Oklahoma State linebacker Amen Ogbongbemiga poses during an NCAA college football media day in Stillwater Okla. Oklahoma State University officials said Wednesday, June 3, 2020, that three returning student-athletes have tested positive for COVID-19 although they were not showing symptoms. Among them is OSU linebacker Amen Ogbongbemiga, who said on Twitter he tested positive for the virus after he attended a protest in Tulsa. The 21-year-old Ogbongbemiga says he protected himself during the protest. (AP Photo/Sue Ogrocki, File)

FILE - In this March 16, 2020, file photo, Oklahoma's State Superintendent of Public Instruction Joy Hofmeister speaks during an emergency meeting of the Oklahoma State Department of Education in Oklahoma City. The Oklahoma State Department of Education released guidance on Wednesday, June 3, 2020, for public schools reopening in the fall that includes recommending the use of masks for staff and students to help prevent the spread of the coronavirus. The department's Return to Learn Oklahoma framework for reopening schools lists several factors for individual districts to consider as they reopen. (Chris Landsberger/The Oklahoman via AP, File)