Dozens of U.S. colleges are announcing plans to test students for the coronavirus this fall, but their strategies vary widely.
Colby College in Maine plans to test all students every other day for two weeks and then twice a week. Harvard University will test students on campus three times a week.
But some plan to test students only if they show symptoms or come into contact with a positive case, including the University of North Carolina at Chapel Hill. Federal health officials discourage widespread testing on college campuses, but some researchers say it’s necessary to prevent outbreaks.
Cornell and Yale university researchers say that without widespread testing, COVID-19 could be spread by infected students who don’t show symptoms.