Systematic review and meta-analysis of antigen rapid diagnostic tests to detect Zaire ebolavirus.

We conducted a systematic review and meta-analysis of studies and reports comparing the performance of antigen rapid diagnostic tests (Ag RDT) for diagnosing Ebola disease (EVD). We searched PubMed, EMBASE, and Web of Science for diagnostic studies published between 1976 and 2023, evaluating them with QUADAS-2. Using a bivariate random-effects model, we estimated the pooled sensitivity and specificity of Ag RDTs. Of 64 eligible full studies and reports, 16 met the inclusion criteria. Pooled sensitivity and specificity were 82.1% (95%CI: 75.2 - 88.0) and 97.0% (95%CI: 95.1-98.2), respectively. We conducted subgroup analysis on 4 Ag RDTs, 3 RT-PCR tests, and 4 sample types, showing varied performance. The high specificity and positive predictive value of Ag RDTs support their use to "rule-in" patients with EVD. However, high-sensitivity RDTs suitable for field settings and capable of detecting multiple ebolavirus species are needed.

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Declaration of competing interest That there is no conflict of interest for this paper