All Yale University students returning to its New Haven, Connecticut, campus after winter break will be required to quarantine until they test negative for COVID-19, the school's newspaper reported.
Students are also being instructed not to eat at local restaurants, even outdoors, according to an email from the school.
Students are allowed to return to campus between Jan. 14 and Feb. 4, then they will be quarantined in their dorms until their "arrival" tests are negative. The campus-wide quarantine ends Feb. 7, the school announced on Dec. 22.
"The fall term demonstrated how effective the health and safety measures we have established are at preventing the spread of COVID-19," Yale President Peter Salovey said in the Dec. 22 announcement. "Most of the transmissions resulted from off-campus social gatherings or within households."
For meals, students have access to "grab-and-go" food from the school or may order curbside pickup rather than eat at local establishments.
"If your arrival test is negative, you may move around the campus, but avoid local businesses, restaurants, and bars, including outdoor dining or drinking," the email states, adding that students must follow the guidelines whether they live on or off-campus.
New Haven is reporting about 103 positive COVID-19 cases per 100,000 residents, according to the state's COVID-19 tracker. More than 60% of New Haven residents are fully vaccinated.
At Yale, nearly 100% of undergraduate and graduate students are fully vaccinated, and more than 90% of staff are fully vaccinated.
As of Monday, four students on campus and 28 teachers or staff members had tested positive for COVID-19. More than 1,800 individuals at the university have been tested for the virus within the last seven days, according to Yale's COVID-19 tracker.