Science Questions

What is the difference between vaccination and immunization?

Sun, 17th Jun 2007

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Question

Jeremiah Saringe, Canada asked:

What is the difference between vaccination and immunization?

When can one use one over the other?

Answer

Immunisation and Vaccination are two words for the same thing; essentially adding a part of a bacteria, or a whole ‘dead’ bacteria to our system, so that our immune system is prepared for us contracting the illness. We actually use the term ‘vaccination’ because the cowpox virus used by Edward Jenner as a preventative treatment for small pox is called vaccinia.

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