Boston College raced to contain an outbreak of COVID-19, as furious students and neighbors expressed fears for their health and a prominent epidemiologist questioned whether the school is doing enough testing.

“It’s very hard to put the genie back in the bottle,” said Dr. Rochelle Walensky, chief of the infectious disease division at Massachusetts General Hospital. “Now they are on a massive chase, and time is not on their side.”

Between Aug. 16 and Sept. 9, the campus reported 81 undergraduates testing positive — more than half this past week.
 

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