"Adjuvants are like superchargers for vaccines. They are mild contaminants that cause the body to respond with a more intense immune response. When paired with antigens, the adjuvant liquid can make the vaccine's impact stronger. This allows for more doses to be produced from less antigen.

The word itself comes from the Latin "adjuvare" which means to help or aid. But adjuvants, like so many scientific discoveries, were stumbled upon almost by accident."