What is the role of the assay for cell-mediated immunity in the workup of mold-related extrinsic allergic alveolitis (EAA)?

Updated: Dec 02, 2020
  • Author: Shih-Wen Huang, MD; Chief Editor: Harumi Jyonouchi, MD  more...
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A delayed-type skin reaction against offending fungal Ags may be positive, with wheal formation after 24-48 hours after the intradermal application of fungal Ag. Positive results on lymphocyte transformation tests against the offending fungi indicate type IV hypersensitivity. The test is not practical for clinical use.

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