Hypersensitivity- Introduction, Causes, Mechanism and Types

Hypersensitivity- Introduction, Causes, Mechanism and Types

Introduction Hypersensitivity is increased reactivity or increased sensitivity by the animal body to an antigen to which it has been previously exposed. The term is often used as a synonym for allergy, which describes a state of altered reactivity to an antigen. Hypersensitivity has been divided into categories based upon whether it can be passively transferred by antibodies or by …

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