Scientist Killed by Plague Reveals Vulnerability to Lab Strains

University of Chicago infectious disease specialist Ken Alexander still remembers the shock he felt almost 18 months ago when his pager shook with the message that a colleague had died from the plague.

A half-hour later, Alexander was sitting at a table in the dean’s office with researchers, lawyers, administrators and campus security officers, he recalled in an interview. The stricken colleague, Malcolm Casadaban, a 60-year-old genetics and cell biology professor, had checked into a hospital five days earlier and died within hours. Lab results were positive for the plague, and the university’s “biosafety fire alarm” had been triggered, Alexander said.