Arthus reaction

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Arthus reaction

[′är·thəs rē′ak·shən]
(immunology)
An allergic reaction of the immediate hypersensitive type that results from the union of antigen and antibody, with complement present, in blood vessel walls.
References in periodicals archive ?
63,64) It is plausible that Arthus reactions are not "meaningless"--and that the type of sensitivity is what renders the fungus pathogenic, rather than the implied converse.
Arthus reactions and whole limb swelling are hypersensitivity reactions that have been associated with vaccines containing tetanus toxoid, tetanus and diphtheria toxoids, and/or pertussis antigens.
Severe adverse events, including Arthus reactions, were not seen among the nearly 6,000 adolescents who kept diaries for 28 days following receipt of Adacel at 2-9 years after priming (about 1,500 at less than 5 years), although there was a modest increase in injection site events with decreasing interval since a previous immunization.