The term cancer vaccine is often used to describe a process whereby a person's
immune system is coaxed into recognizing and destroying malignant cells without harming normal cells. A cancer vaccine is generally considered an
immunotherapy, because, unlike prophylactic vaccines against diseases such as
polio,
influenza, and
tuberculosis, a cancer vaccine is not preventive and must be administered after cancerous cells develop. Note that the
HPV vaccine and the
Hepatitis B vaccine are not cancer vaccines as described above. It works by preventing infection by the
HPV thereby reducing the occurrence of
cervical cancer, not by coaxing the body into recognizing and destroying malignant cells.
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a vaccine that would stimulate the immune system to recognize and kill cancer cells.
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