25: Specific Adaptive Host Defenses (Part B)
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- 25.2: Vaccines
- By artificially stimulating the adaptive immune defenses, a vaccine triggers memory cell production similar to that which would occur during a primary response. In so doing, the patient is able to mount a strong secondary response upon exposure to the pathogen—but without having to first suffer through an initial infection. In this section, we will explore several different kinds of artificial immunity along with various types of vaccines and the mechanisms that they induce artificial immunity.
Thumbnail: From left to right: erythrocyte ,platelet and lymphocyte. (Public Domain; The National Cancer Institute at Frederick ).