Arthus reaction

noun
Ar·thus reaction | \ˈär-thəs-, ȧr-ˈtᵫ̅s- \
variants: also Arthus phenomenon

Medical Definition of Arthus reaction 

: a hypersensitivity reaction that occurs several hours to days following the intradermal injection of a vaccine into an animal and is marked by the formation of antigen-antibody complexes accompanied by localized inflammation, pain, redness, and sometimes tissue destruction

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