Antigen « Back to Glossary IndexSave as PDFPrint this pageThe part of a pathogen that stimulates a response from the immune system. Related Articles: How Vaccines WorkHow vaccines were invented? Why vaccines are important? Find out more about the history of vaccines, how they work and more information on the topic.How Vaccines WorkHow vaccines were invented? Why vaccines are important? Find out more about the history of vaccines, how they work and more information on the topic.Glossary: Subunit vaccineGlossary: Recombinant vaccine« Back to Glossary IndexRelated Terms:Term: Pathogen