Immunizations

Alternate Terms:
  • Vaccinations
 Begin Learning with Healthy Advice:
Vaccination & Immunization



Immunizations Definition by Healthwise:

Immunizations

Immunizations, also called vaccinations, are given to protect people from becoming infected with certain diseases. Fragments of a disease organism or small amounts of a weakened disease organism are introduced into the body, usually by injection, which triggers the development of antibodies that can then recognize and destroy these disease organisms if later exposed to them.

Some immunizations are given only once, while others require several doses over time.

Sometimes an immunization does not completely prevent the disease, but it will significantly reduce its severity.

Author: Jeannette Curtis
Medical Review: Patrice Burgess, MD - Family Medicine
Adam Husney, MD - Family Medicine
Kathleen Romito, MD - Family Medicine
Last Updated: May 25, 2007

healthwise logo © 1995-2012 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.

This information does not replace the advice of a doctor. Healthwise discalims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use.