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An allergen is an otherwise harmless substance that triggers an allergic reaction in sensitive individuals by stimulating an immune response. In technical terms, an allergen is an antigen that is capable of stimulating a type-I hypersensitivity reaction in atopic individuals through immunoglobulin E (IgE) responses. [ 1 ]
Prevalence still unknown as of 2016. [40] Red Meat [41] Hives, swelling, dermatitis, stomach pain, nausea, vomiting, dizziness, fainting, shortness of breath, [42] anaphylaxis. Allergies to the sugar carbohydrate found in beef, venison, lamb, and pork called alpha-gal. It is brought on by tick bites. [43]
Allergen immunotherapy is useful for environmental allergies, allergies to insect bites, and asthma. [6] [109] Its benefit for food allergies is unclear and thus not recommended. [6] Immunotherapy involves exposing people to larger and larger amounts of allergen in an effort to change the immune system's response. [6]
Frequency. ~6% (developed world) [1][2] A food allergy is an abnormal immune response to food. The symptoms of the allergic reaction may range from mild to severe. They may include itchiness, swelling of the tongue, vomiting, diarrhea, hives, trouble breathing, or low blood pressure. This typically occurs within minutes to several hours of ...
Allergen immunotherapy, also known as desensitization or hypo-sensitization, is a medical treatment for environmental allergies (such as insect bites) and asthma. [1][2] Immunotherapy involves exposing people to larger and larger amounts of allergens in an attempt to change the immune system's response. [1]
Allergy blood tests measure the presence of IgE antibodies to specific foods, pollens, mites, animals, insects and other environmental factors. (IgE, short for "immunoglobulin E", is the antibody that triggers food allergy symptoms.) The doctor looks at the test results to help determine if the patient has allergies.
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