Skip to Content


Pronunciation: im'myu-ni-za'shun

Definition: Protection of susceptible patients from communicable diseases by administration of a living modified agent (yellow fever vaccine), a suspension of killed organisms (pertussis vaccine), a protein expressed in a heterologous organism (hepatitis B vaccine), or an inactivated toxin (tetanus).

See Also: vaccination, allergization

Disclaimer: This site is designed to offer information for general educational purposes only. The health information furnished on this site and the interactive responses are not intended to be professional advice and are not intended to replace personal consultation with a qualified physician, pharmacist, or other healthcare professional. You must always seek the advice of a professional for questions related to a disease, disease symptoms, and appropriate therapeutic treatments.
© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.