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Types of adaptive immunity. WBC. Active reaction of your own system Passive borrow immune agents from another person. Pathogen. Antibodies. Types of adaptive immunity. Natural – occurs accidentally, on its own Active – you are exposed to the flu, then develop immunity to that flu strain
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Types of adaptive immunity WBC • Active • reaction of yourown system • Passive • borrow immune agents from another person Pathogen Antibodies
Types of adaptive immunity • Natural– occurs accidentally, on its own • Active– you are exposed to the flu, then develop immunity to that flu strain • Passive– a fetus receives antibodies from mom • Artificial– stimulated on purpose • Active– vaccination with a killed virus triggers immunity to the live virus • Passive– Injection of antibodies provides immunity
Inappropriate immunity • Autoimmunity – “self” cells are attacked (abnormal) • Allergy (Hyperimmunity) – excessive response to antigen, or response to something not normally an antigen (allergen)