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Items: 3

1.

Allergy

A pathological immune process generally directed towards a foreign antigen, which results in tissue injury, which is usually transient. It is the realization of the allergic disposition. It is most often applied to type I hypersensitivity but other hypersensitivity types especially type IV (e.g. allergic contact dermatitis) may be involved. [from SNOMEDCT_US]

MedGen UID:
287129
Concept ID:
C1527304
Pathologic Function
2.

Hypersensitivity

An allergy is a reaction by your immune system to something that does not bother most other people. People who have allergies often are sensitive to more than one thing. Substances that often cause reactions are. -Pollen. -Dust mites. -Mold spores. -Pet dander. -Food. -Insect stings. -Medicines. Normally, your immune system fights germs. It is your body's defense system. In most allergic reactions, however, it is responding to a false alarm. Genes and the environment probably both play a role. Allergies can cause a variety of symptoms such as a runny nose, sneezing, itching, rashes, swelling, or asthma. Allergies can range from minor to severe. Anaphylaxis is a severe reaction that can be life-threatening. Doctors use skin and blood tests to diagnose allergies. Treatments include medicines, allergy shots, and avoiding the substances that cause the reactions. NIH: National Institute of Allergy and Infectious Diseases.  [from MedlinePlus]

MedGen UID:
9370
Concept ID:
C0020517
Pathologic Function
3.

Allergy to peanuts

Allergic reaction to peanuts that is triggered by the immune system. [from MeSH]

MedGen UID:
108242
Concept ID:
C0559470
Disease or Syndrome
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