Atopy | definition of atopy by Medical dictionary
A state of increased sensitivity to common antigens (e.g., house dust, animal dander, pollen) with increased production of allergen-specific IgE. Atopy may have a hereditary component, given the increased susceptibility to hay fever, asthma and eczematoid dermatitis. Segen's Medical Dictionary. © 2012 Farlex, Inc.
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