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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
* type 3 reactions (Arthus reactions), occurring when IgG binds to a dissolved foreign substance and precipitates as an irritating, inflammatory complex; they occur in hours to a day and offer protection against toxins;
A theoretical risk exists for severe local reactions (e.g., Arthus reactions, whole limb swelling) for pregnant women who have multiple closely spaced pregnancies.
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.