With meeting case count rising, Biogen tells attendees to prep for quarantine, isolate from loved ones

A Biogen management meeting held in Boston in late February is at the center of Massachusetts’ outbreak of the novel coronavirus—and adding to case counts far beyond.

After the drugmaker on Friday confirmed three employees who traveled to Boston for the meeting had COVID-19 infections, the number swelled significantly over the weekend. Including those original three, the meeting accounts for at least 28 cases so far.