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Published November 22, 2013, 12:00 AM

Germ-killing robot

A germ-killing robot uses powerful flashes of ultraviolet-C light to kill germs in patients' rooms at Essentia Health-St. Mary's Medical Center in a demonstration Thursday, Nov. 21, 2013. Bob King/Duluth News Tribune
Read the article: Essentia Health in Duluth brings in robot to kill deadly bacteria