Postzone Effect in Histoplasma Urine Lateral Flow Antigen Tests Can Cause Weak Or False Negative Results
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In this article, we evaluate a possible postzone effect for the Histoplasma antigen Lateral Flow Assay (LFA). We re-tested urine samples that were Histoplasma-positive with the LFA, both for an undiluted and diluted sample. Of the twelve samples, a postzone ef... ...
