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Evaluation of the clinical sensitivities of three viral load assays with plasma samples from a pediatric population predominantly infected with human immunodeficiency virus type 1 subtype G and BG recombinant forms
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The viral load assays AMPLICOR HIV-1 Monitor Test 1.5, Nuclisens HIV-1 QT, and Quantiplex HIV RNA 3.0 (bDNA) were evaluated for their abilities to quantify human immunodeficiency virus type 1 (HIV-1) RNA in 64 plasma samples from 21 children infected in Portugal. The children were infected with HIV-1 subtypes A1, B, F1, G, and BG recombinant virus. AMPLICOR v1.5 and Quantiplex v3.0 detected all samples, and there was a good correlation of results between the two kits. Thirty-eight specimens containing HIV-1 subtype B, G, or recombinant BG, could not be detected by Nuclisens HIV-1 QT. We also evaluated the new Retina HIV-1 assay on 21 samples that were HIV-1 positive; Retina HIV-1 failed to detect 5 of 11 subtype G specimens. AMPLICOR v1.5 and Quantiplex v3.0 assays may be used for HIV-1 RNA quantification in Portugal, whereas an improvement in sensitivity for subtype G and recombinant BG is required for Nuclisens HIV-1 QT and Retina HIV-1.
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Copyright © 2003, American Society for Microbiology. All Rights Reserved.
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Antunes R, Figueiredo S, Bártolo I, Pinheiro M, Rosado L, Soares I, et al. Evaluation of the Clinical Sensitivities of Three Viral Load Assays with Plasma Samples from a Pediatric Population Predominantly Infected with Human Immunodeficiency Virus Type 1 Subtype G and BG Recombinant Forms. J Clin Microbiol 2003;41:3361–7. https://doi.org/10.1128/JCM.41.7.3361-3367.2003.