- The University of North Carolina at Chapel Hill canceled in-class instruction just one week into the new term on Monday after positive cases of COVID-19 shot up dramatically, becoming the latest U.S. school to reverse course on reopening. The university’s chancellor said in a letter to students posted on the campus website that classes would be held online going forward, along with academic support services. Aug. 11 was the first day of the new academic year. The decision came after the COVID-19 positivity rate - the percentage of those tested who had infections - went from 2.8% to 13.6% at the campus clinic, Chancellor Kevin Guskiewicz said in the message. “So far, we have been fortunate that most students who have tested positive have demonstrated mild symptoms,” Guskiewicz said. Other colleges, including the University of Southern California in Los Angeles, began the fall semester on Monday with all classes conducted online. Nationwide, new cases of COVID-19 fell for a fourth wee