Summary(1) Elevated IgE antibody toA.fumigatusis present in most patients with allergic bronchopulmonary aspergillosis, but not in the sera of patients with a variety of pulmonary conditions that containA. fumigatusprecipitins.(2) The RAST assays for measuring IgE antibodies to this antigen are relatively simple to perform and have a practical clinical value.(3) The exact pathophysiologic role of these IgE antibodies is not yet denned, and several hypotheses are proposed.
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