(Newser)
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A 60-year-old researcher at the University of Chicago died earlier this month from an infection that may have been set off by the bacteria that causes the plague. Malcolm Casadaban was working with a weakened strain of the bacteria that is normally harmless, and the CDC has been called in to investigate why he died. The university says that there is no threat to the public but has offered antibiotics to about 100 acquaintances of the victim.
