challenge

(redirected from nasal allergen challenge)
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challenge

1. US an assertion that a person is not entitled to vote or that a vote is invalid
2. Law a formal objection to a person selected to serve on a jury (challenge to the polls) or to the whole body of jurors (challenge to the array)

challenge

[′chal·ənj]
(communications)
To cause an interrogator to transmit a signal which puts a transponder into operation.
(immunology)
Administration of an antigen to ascertain state of immunity.
References in periodicals archive ?
Intranasal steroids administered 7 days before nasal allergen challenge inhibit both immediate and late-phase mediator release.
Conducted at National Jewish Medical and Research Center, the study used the nasal allergen challenge model to test the efficacy of R112 in 20 volunteer patients with at least a two-year history of seasonal allergic rhinitis and confirmed reactivity to a specific allergen (grass or ragweed pollen extracts).