Types of adaptive immunity Active –reaction of your own system Passive –borrow immune agents from another person WBC Pathogen Antibodies.

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Presentation transcript:

Types of adaptive immunity Active –reaction of your own system Passive –borrow immune agents from another person WBC 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)