Results for tag: "QS21"

QS21 is a saponin-based adjuvant used in vaccines to enhance the body's immune response to the vaccine. It is a naturally occurring molecule found in the bark of the Quillaja saponaria tree, native to Chile. QS21 is used in combination with antigens to create a more effective vaccine. It works by stimulating the body's immune system to produce more antibodies, which helps the body recognize and fight off the disease. QS21 is used in a variety of vaccines, including those for influenza, hepatitis B, and human papillomavirus (HPV). It is also used in combination with other adjuvants, such as alum, to create more effective vaccines. QS21 is a popular adjuvant in the vaccine market due to its safety and efficacy. It has been approved by the US Food and Drug Administration (FDA) and the European Medicines Agency (EMA). Companies in the QS21 market include GlaxoSmithKline, Merck, Sanofi Pasteur, and Pfizer. These companies produce vaccines that contain QS21 as an adjuvant. Other companies, such as Seqirus and Emergent BioSolutions, also produce vaccines that contain QS21. Show Less Read more