1887

Abstract

A down-flow immunoassay has been developed to detect serum mannan antigens, and the test was recently marketed as the Unimedi monotest. Using 251 serum samples from 105 patients with candidaemia, a comparison of the Unimedi monotest with the Cand-Tec latex agglutination test and 2 microplate enzyme immunoassay tests (Platelia Ag test and Unimedi ) was conducted. One hundred and seventy-five febrile patients without clinical and microbiological evidence of fungal infections and pneumocytosis were examined as controls. The Cand-Tec test had a sensitivity of 38 % and a specificity of 82 %. The sensitivity and specificity of the Platelia Ag test, the Unimedi and the Unimedi monotest were 53 and 92 %, 69 and 89 % and 82 and 96 %, respectively. The sensitivity of the Unimedi monotest was significantly (<0·01) higher than that of the Plateria Ag test for diagnosing candidaemia caused by . The --glucan assay had a high sensitivity of 95 %, with a specificity of 84 %. Of 74 patients with candidaemia whose sera were available before or on positive blood culture sampling, 29 (39 %), 38 (51 %) and 48 (65 %) patients had antigenemia detected using the Platelia Ag test, the Unimedi and the Unimedi monotest, respectively. The Unimedi monotest seems to be a promising tool for the early diagnosis of invasive candidiasis, because the test was sensitive, simple, rapid (approx. 1 h) and cost-effective.

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2006-05-01
2021-10-22
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