Freund's adjuvant

Freund's adjuvant is a substance used in vaccines to enhance the body's immune response to an antigen, which is a substance that triggers an immune reaction. It contains oil and killed bacterial components, helping to stimulate and prolong the immune response. When mixed with an antigen, it creates a stronger and more lasting defense against infections. Freund's adjuvant is primarily used in research and laboratory settings, rather than in human vaccines, due to potential side effects. Its role is crucial in studying how the immune system responds to pathogens and in the development of new vaccines.