vaccine therapyListen to pronunciation(vak-SEEN THAYR-uh-pee)A type of treatment that uses a substance or group of substances to stimulate the immune system to destroy a tumor or infectious microorganisms such as bacteria or viruses.More InformationCancer Treatment VaccinesSearch NCI's Dictionary of Cancer TermsStarts withContainsBrowse:ABCDEFGHIJKLMNOPQRSTUVWXYZ#