Only a few weeks into fall semester, colleges and universities across the country are urgently trying to control clusters of COVID-19 infections on their campuses. Thousands of cases have been reported nationwide, forcing universities to switch to virtual classes and either quarantine or, in some cases, send students back home whether or not they're sick. … "It's the worst thing you could do," he said Wednesday on NBC's "TODAY" show. "When you send them home, particularly when you're dealing with a university where people come from multiple different locations, you could be seeding the different places with infection," said Fauci.