A medical technician accused of infecting at least 30 patients at a New Hampshire hospital with hepatitis C also worked in the past five years at hospitals in New York, Michigan, Arizona, Georgia, and Maryland, health officials in those states said Friday. A day after federal prosecutors in Concord, N.H., charged David Matthew Kwiatkowski, investigators worked to determine whether the 32-year-old former worker at Exeter Hospital may have exposed other patients around the country to the hepatitis virus.
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