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Short Communication • Rev. Soc. Bras. Med. Trop. 57 • 2024 • https://doi.org/10.1590/0037-8682-0094-2024   copy

Evaluation of commercial immunodiffusion reagents for detecting serum anti-Paracoccidioides antibodies

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Background:

Accurate diagnosis of paracoccidioidomycosis is crucial for improving patient outcomes. Paracoccidioides antibody detection by double immunodiffusion (DID) is a convenient diagnostic tool, but testing performance can vary based on certain factors.

Methods:

We assessed DID performance using a commercially prepared Paracoccidioides reagents (IMMY, USA), involving 40 serum specimens, including 20 from patients with proven paracoccidioidomycosis and 20 from patients without the disease. The DID test demonstrated a sensitivity of 90% (95% CI=68%-99%) and a specificity of 100% (95% CI=83%-100%).

Conclusions:

Our findings suggest that DID using commercial reagents may provide a feasible tool with satisfactory testing performance for anti-Paracoccidioides antibody detection.

Keywords:
Double immunodiffusion; Paracoccidioides; Antibodies

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