From the Director of the National Center for Health Statistics:

I am asking for your help with an important study conducted by the Centers for Disease Control and Prevention (CDC) called the National Immunization Survey (NIS).  This survey tells us which vaccines people in the U.S. have received and about other important health topics.  Results from the NIS are used to help health officials in their efforts to improve health care programs.   In the next few weeks, the National Opinion Research Center (NORC) at the University of Chicago will call your household to take part in this study for CDC.

For this study, we need to ask about vaccinations and about children’s health. Some households also may be asked questions about the health services their children need or use. If you have a child between 18 and 35 months of age, it would be helpful to have your child’s immunization records handy when answering our questions. However, you can also answer these questions without the records.

Your phone number was chosen randomly by computer. It is important for us to interview every household we call to get a complete picture of your area’s immunization rates and key factors that might affect them. The study is important, but you do not have to take part, or you can decide not to answer one or more questions.

You may call this toll free number at 1-866-999-3340 if you would like to take part in the study now.  You can also call this number to learn more about the study and what you will be asked.  For more information, see the NIS frequently asked questions or go to the study’s web site: http://www.cdc.gov/nis. 

Your answers to the NIS will provide information to help improve the nation’s health now and in the years ahead.  We need your help to make this study a success. We hope you will decide to take part when we call.

Thank you for your cooperation. I am grateful for your help.

Sincerely,