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Change Indicator

2-year-olds who were immunized in United States

2-year-olds who were immunized

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Note: Non-consecutive years appear adjacent in the trend line
because one or more years have been deselected.

Definition and Source



4:3:1:3:3:1 vaccination coverage. Years 2002 through 2008 represent 3 or more doses of Hib and do not specify whether or not the full series of Hib was completed.

Data Source

Centers for Disease Control, National Immunization Survey:

Last Updated

February 2014