Type I hypersensitivity reaction can occur in many parts of the body, but generally they include:
nose: allergic rhinitis (hay fever)
eye: allergic conjunctivitis ...
Type I hypersensitivity reactions, in which allergen-bound IgE antibodies bind to high-affinity cell surface receptors on mast cells and basophils ...
type I hypersensitivity allergic reaction caused by bacterial allergens;
2. the delayed type of skin test (type IV hypersensitivity reaction), so called because of its early association with bacterial antigens (the tuberculin test).
It is a form of type I hypersensitivity in which the bronchioles in the lungs are narrowed by inflammation and spasm of the lining of the airway wall. A person with asthma may experience wheezing, shortness of breath and poor exercise tolerance.
Anaphylaxis is a life-threatening, rapid, type I hypersensitivity reaction mediated by IgE, causing local and systemic responses to multiple organ systems.
Atopic individuals can develop vasculitis after exposure to allergens. This type I hypersensitivity can lead to mast cell degranulation, hypereosinophilia, and inflammation, which, in turn, can lead to vasculitis.
Signs and symptoms ...
Type I Hypersensitivity (Reaction)
Type II Hypersensitivity (Reaction)
Type III Hypersensitivity (Reaction)
Type IV Hypersensitivity (Reaction)
Type V Hypersensitivity (Reaction)
Type VI Hypersensitivity (Reaction) ...
 See also: Hypersensitivity, Symptom, Allergy, Angioedema, Asthma
  
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