CONCORD, N.H. (AP) — A dozen hospitals in seven states are scrambling to identify people who might have been infected with hepatitis C by a traveling medical technician who was charged a week ago with causing an outbreak in New Hampshire.

With details of David Kwiatkowski’s resume still emerging, a hospital official in Arizona said he had been fired from her facility in April 2010, after he was found unresponsive in a men’s locker room with syringes and needles. Kwiatkowski was treated at the hospital, and tests showed he had cocaine and marijuana in his system, said Monica Bowman, chief executive officer of the Arizona Heart Hospital.