The University of Connecticut says it has placed all of its residential buildings on its Storrs campus under quarantine or modified quarantine for the rest of the in-person semester, which ends Nov. 20. In a statement, the university said the move was needed because of the “persistently high number of positive cases” of coronavirus. UConn reported seven new on-campus positive cases and 24 new off-campus positive cases. One more employee tested positive. In a letter sent Friday, UConn said it doesn’t have the spread of COVID under control. It also said that every student must receive a COVID test before leaving for Thanksgiving break.