NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,079 terms related to cancer and medicine.

bivalent vaccine
(by-VAY-lent vak-SEEN)
A vaccine that works by stimulating an immune response against two different antigens, such as two different viruses or other microorganisms. For example, Cervarix is a bivalent vaccine that helps protect the body against infection with two different types of human papillomaviruses (HPV).