Progress in Immunization Information Systems – United States, 2009

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An immunization information system (IIS) is a confidential, computerized, population-based system that collects and consolidates vaccination data from vaccine providers and provides tools for designing and sustaining effective immunization strategies at the provider and program levels. In 2010, the Task Force on Community Preventive Services recommended that immunization information systems be used to increase vaccination coverage after showing strong evidence of their effectiveness.