antigen

(redirected from cross-reacting antigen)
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  • noun

Words related to antigen

any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies)

References in periodicals archive ?
The lack of specificity has stimulated investigators to find ways for improving the discrimination between HLA-B27 and cross-reacting antigens [4, 6, 7, 10, 11].
The third paragraph of discussion of the original paper (3) states: "There could be a true biologically low rate of Hib meningitis in children in this region, related to (a) genetic factors in local children, resulting in reduced infection rates, (b) early exposure to Haemophilus and other bacteria with cross-reacting antigens, leading to early natural immunity, (c) local variation in bacterial virulence and transmission, or (d) to vaccine use.
IgA may be directed against gluten protein or other cross-reacting antigens that originate in the gastrointestinal tract (1).
The TST is notoriously inaccurate in BCG-vaccinated persons because of cross-reacting antigens that commonly cause false positive results.