What is an adjuvanted vaccine?

An adjuvant is a substance that is added to a vaccine in order to boost the individual's response. Its also means that less of the virus or "antigen" is needed to make a dose of the vaccine. Unadjuvanted vaccine has no "immune boosting" element, and more antigen is needed to create this kind of vaccine.

Adjuvants are made entirely from naturally-occurring ingredients such as oil, water and Vitamin E. Adjuvants can be found in many common vaccines. The adjuvant in the H1n1 vaccine has been tested with over 45,000 people around the world.