J. Lewis, P. MacPherson, E. Adams, E. Ochodo, A. Sands, M. Taegtmeyer
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Field accuracy of fourth-generation rapid diagnostic tests for acute HIV-1: a systematic review
Introduction:Fourth-generation HIV-1 rapid diagnostic tests (RDTs) detect HIV-1 p24 antigen to screen for acute HIV-1. However, diagnostic accuracy during clinical use may be suboptimal. Methods:Clinical sensitivity and specificity of fourth-generation RDTs for acute HIV-1 were collated from field evaluation studies in adults identified by a systematic literature search. Results:Four studies with 17 381 participants from Australia, Swaziland, the United Kingdom and Malawi were identified. All reported 0% sensitivity of the HIV-1 p24 component for acute HIV-1 diagnosis; 26 acute infections were missed. Specificity ranged from 98.3 to 99.9%. Conclusion:Fourth-generation RDTs are currently unsuitable for the detection of acute HIV-1.
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