Type I hypersensitivity
Type of allergic reaction / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Type I hypersensitivity?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
Type I hypersensitivity (or immediate hypersensitivity), in the Gell and Coombs classification of allergic reactions, is an allergic reaction provoked by re-exposure to a specific type of antigen referred to as an allergen.[1] Type I is distinct from type II, type III and type IV hypersensitivities. The relevance of the Gell and Coombs classification of allergic reactions has been questioned in the modern-day understanding of allergy, and it has limited utility in clinical practice.[2]
Quick Facts Other names, Specialty ...
Type I hypersensitivity | |
---|---|
Other names | Immediate hypersensitivity |
Image showing the mechanism of activation of type 1 hypersensitivity in a mast cell. | |
Specialty | Immunology |
Close
Exposure may be by ingestion, inhalation, injection, or direct contact.