: Retaining information from previous infections to prevent future illness.
: Where the system mistakenly attacks "self" tissues. Immunology
: Utilizing immunotherapy to train the immune system to recognize and destroy tumor cells. Essay | Nature Reviews Immunology : Retaining information from previous infections to prevent
: This "second line" of defense is highly specific and develops over time. It relies on B cells , which produce antibodies, and T cells , which can directly kill infected cells. A hallmark of adaptive immunity is its ability to create "immunological memory," allowing the body to respond faster and more effectively upon re-exposure to the same pathogen. 2. Core Principles of Immunology which produce antibodies