Description of the data source, numerator, denominator, survey questions, and other relevant details about the national estimate.
The National Immunization Survey (NIS) uses a quarterly, random-digit–dialed sample of telephone numbers to reach households with children aged 19–35 months in the 50 states and selected local areas and territories, followed by a mail survey sent to the children's vaccination providers to collect vaccination information. Data are weighted to represent the population of children aged 19–35 months, with adjustments for households with multiple telephone lines and mixed telephone use (landline and cellular), household nonresponse, and exclusion of households without telephone service. Beginning in 2011, surveys include landline and cellular telephone households.
This measure tracks the proportion of children aged 19 to 35 months receiving at least 2 doses of the hepatitis A (HepA) vaccine.
Additional resources about the objective.
This hyperlink will direct you to a non-governmental Website or application.
The appearance of external hyperlinks does not constitute endorsement by the United
States Department of Health & Human Services (HHS) of the hyperlinked Website
or application, or the information, products or services contained therein. Such
hyperlinks are provided consistent with the intended purpose of this HHS Website.
Visitors to the hyperlinked Website or application will be subject to the Website
or application's privacy policies. These practices may be different than those of
this HHS Website.
You will be redirected to: link