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ALLERGIC REACTIONS

ALLERGIC REACTIONS

An allergy is a hypersensitive reaction to an antigen by the body. The antibody reacts with the antigen violently. People with allergies are oversensitive to foreign materials like dust, pollen grains, some foods, some drugs and some air pollutants. Allergic reactions lead to production of histamine by the body.

Histamine causes swelling and pain. Allergic reactions can be controlled by avoiding the allergen and administration of anti-histamine drugs.

 

See also

IMPORTANCE OF VACCINATION

IMMUNE RESPONSES

DETERMINATION OF THE GENOTYPE OF A DOMINANT PHENOTYPE

VARIATION IN POPULATION

CLASSIFICATION OF ANIMALS AND ORGANIZATION OF LIFE

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