02/22/2012 09:01 am ET Updated Apr 23, 2012

Filthy Surgical Instruments: The Hidden Threat In America's Operating Rooms

It seemed simple enough at the time. In 2009, John Harrison, a 63-year-old oil industry sales manager in Mission, Texas, had surgery to repair the rotator cuff in his right shoulder, a routine procedure that usually requires at most a single night's stay in the hospital, followed by physical therapy. For Harrison, however, there was nothing routine about the ordeal that ensued.

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