Virus Outbreak

FILE - In this March 18, 2021, file photo, students in teacher Christopher Duggan's science class clean their work areas at the end of class at Windsor Locks High School in Windsor Locks, Conn. The Centers for Disease Control and Prevention relaxed its social distancing guidelines for schools Friday, March 19, saying students can now sit 3 feet apart in classrooms. The new guidelines also remove recommendations for plastic shields or other barriers between desks. (AP Photo/Jessica Hill, File)