The return of tens of thousands of college students to Massachusetts from all corners of the US and world, once feared as a super-spreading provocation, has instead proved to be one of the few successes of the pandemic, thanks to an extensive testing system that could serve as a model for the rest of society.
The immense undertaking by many New England colleges and universities included testing students when they first arrived on campus, requiring them to wear face masks and limit social gatherings, and, throughout the fall, making everyone on campus undergo a nose swab test for COVID-19 at least once a week — with results usually available within less than 24 hours.
https://www.bostonglobe.com/2020/11/28/metro/campus-lesson-controlling-virus/