North Carolina’s flagship university is switching all undergraduate classes to remote learning due to the spread of coronavirus during the first week of classes.

Officials at the University of North Carolina at Chapel Hill and schools around the U.S. are scrambling to deal with new cases amid the start of the fall semester.

Cases were reported at Oklahoma State University after maskless students packed into a nightclub, and off-campus parties have been blamed for cases at Notre Dame.

Schools in Tennessee, Georgia and Alabama also were not immune, as officials were frustrated by the lack of social distancing and scenes of crowded entertainment districts and bars on the first weekend many students returned to school.

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