### Question
What is the definition of immunization?


### Answer
The definition of **immunization** is as follows in *42 U.S.C. § 1396s*:

> an immunization against a vaccine-preventable disease

#### Citation:
  - *42 U.S.C. § 1396s*
  - Heading: **CHAPTER 7-SOCIAL SECURITY > SUBCHAPTER XIX-GRANTS TO STATES FOR MEDICAL ASSISTANCE PROGRAMS**

