Anaphylaxis is a severe, whole-body allergic reaction to a chemical that has become an allergen. After being exposed to a substance such as bee sting venom, the person's immune system becomes sensitized to it. When the person is exposed to that allergen again, an allergic reaction may occur. Anaphylaxis happens quickly after the exposure, is severe, and involves the whole body.
19 year experience in Allergy and Immunology
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Baby 0-2 | Very common | ||||
Preteen 6-13 | Very common | ||||
Teenager 14-18 | Very common | ||||
Young adult 19-40 | Very common | ||||
Middle-aged adult 41-60 | Very common |
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