Duke University, already operating under lockdown to combat a rise in coronavirus infections, on Tuesday reported 231 cases from last week, almost as many as the school had the entire fall semester.
"This was the highest number of positive cases reported in a single week," the school said in a statement. "The individuals who tested positive have been placed in isolation, while those identified as potential contacts have been placed in precautionary quarantine."
The school issued a "stay in place" order Saturday, requiring students living in Duke-provided housing to remain in their residence hall room or apartment at all times except for essential activities related to food, health or safety. Students living off campus are required to stay there except for a few exceptions.
Rush events by unaffiliated fraternities appear to be the main culprit for the outbreak.
“This (stay-in-place) action is necessary to contain the rapidly escalating number of COVID cases among Duke undergraduates, which is principally driven by students attending recruitment parties for selective living groups,” the university said.

Even though the covid epidemic on U.S. soil is already serious, free Americans still socially gather without any sense of crisis.