Comparison of <i>Aspergillus</i> galactomannan antigen testing with a new cut‐off index and <i>Aspergillus</i> precipitating antibody testing for the diagnosis of chronic pulmonary aspergillosis

Abstract

For the diagnosis of CPA, Aspergillus precipitating antibody testing is more sensitive than the Platelia Aspergillus EIA, even with the new cut-off index. False-positive reactions are observed with the Platelia Aspergillus EIA in patients with conditions such as pulmonary actinomycosis. Results should be interpreted with care when patients are positive for the Platelia Aspergillus EIA but negative for Aspergillus precipitating antibody.