The National Immunization Survey (NIS) is the largest survey ever conducted to assess vaccination levels of young children in the U.S.  The NIS also helps track progress towards public health immunization goals.

To increase the accuracy and precision of the data collected, the NIS obtains consent to contact the immunization providers of the children in the households surveyed.  The NIS provides a consistent data set for making national and state-level estimates of vaccination levels in children ages 19-35 months, including new vaccines as they are licensed and recommended for use.

Other Surveys Related to the NIS

State and Local Area Integrated Telephone Survey (SLAITS)

In addition to its focus on vaccination rates, the NIS includes the State and Local Area Integrated Telephone Survey (SLAITS), which builds on the NIS sampling frame to address other issues of importance.  Examples of SLAITS durveys include the National Survey of Children with Special Health Care Needs, the National Survey of Adoptive Parents, and the National Survey of Children's Health. 

The National 2009 H1N1 Flu Survey

The National 2009 H1N1 Flu Survey is a telephone survey of both landline and cell telephones. The survey began in September 2009 in order to help the Centers for Disease Control and Prevention (CDC) monitor and evaluate flu vaccination efforts among adults and children.  In addition to gathering information about H1N1 and seasonal flu vaccination status of adults and children, the survey also asks about flu-related behaviors, opinions about flu vaccine safety and effectiveness, recent respiratory illness, and pneumococcal vaccination status.