Updated at 11:44 a.m. ET Tuesday
A growing number of U.S. colleges have canceled in-person classes because of the coronavirus. The closures began in Washington state, and now include Harvard University, Columbia University, Princeton University, Rice University, Stanford University, Hofstra University, University of California, Berkeley, and the University of Washington, among others. As of midday Tuesday, more than half a million students are affected by the cancellations.