Allergies and hypersensitivity
Allergies, also recognized as allergic diseases, are a numeral of conditions caused by hypersensitivity of the immune system to classically harmless substances in the environment These diseases contain hay fever, food allergies, atopic dermatitis, allergic asthma, and anaphylaxis. Symptoms may embrace red eyes, an itchy rash, sneezing, a runny nose, shortness of breath, or swelling. Food intolerances and food poisoning are separate circumstances.
- Track 1-1 immediate hypersensitivity
- Track 2-2 cytotoxic or antibody-dependent hypersensitivity
- Track 3-3 immune complex disease
- Track 4-4 delayed-type hypersensitivity