VIOLIN: Vaccine Investigation and Online Information Network

Pathogen Page

Allergy

General Information
1. Disease
2. Introduction
Vaccine Related Pathogen Genes
1. Angpt1
2. AroA
3. Cd276
4. Cd86
5. Fas
6. Flt3
7. Il18
8. Il25
9. Il33
10. LPS lipopolysaccharide
11. p7
12. phl p I
13. PRO2
14. Tbx21
15. Tnfrsf13b
16. Tnfrsf9
Vaccine Information
1. Phleum pratense Allergy Phl p 12 Subunit Vaccine
References

I. General Information

1. Disease:

Allergy

2. Introduction

Allergy is a disorder of the immune system which is a form of hypersensitivity. Allergic reactions occur to normally harmless environmental substances known as allergens; these reactions are acquired, predictable, and rapid. Strictly, allergy is one of four forms of hypersensitivity and is called type I (or immediate) hypersensitivity. It is characterized by excessive activation of certain white blood cells called mast cells and basophils by a type of antibody known as IgE, resulting in an extreme inflammatory response. Common allergic reactions include eczema, hives, hay fever, asthma attacks, food allergies, and reactions to the venom of stinging insects such as wasps and bees.

Mild allergies like hay fever are highly prevalent in the human population and cause symptoms such as allergic conjunctivitis, itchiness, and runny nose. Allergies can play a major role in conditions such as asthma. In some people, severe allergies to environmental or dietary allergens or to medication may result in life-threatening anaphylactic reactions.

A variety of tests now exist to diagnose allergic conditions; these include testing the skin for responses to known allergens or analyzing the blood for the presence and levels of allergen-specific IgE. Treatments for allergies include allergen avoidance, use of anti-histamines, steroids or other oral medications, immunotherapy to desensitize the response to allergen, and targeted therapy (Wiki: Allergy).

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