FLAGSTAFF, Ariz., Oct. 22 (UPI) -- Epidemic specialists say a Grand Canyon National Park biologist who died last year caught the plague from a mountain lion.
Eric York was exposed to pneumonic plague last October when he conducted an autopsy on a female mountain lion who died in the park, USA Today reported Tuesday. The disease is actually endemic west of the Mississippi River. It was brought to the western United States in the 1800s by flea-infested rats on ships from China, the newspaper noted.