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Article Abstract
Background: Accurate diagnosis and timely treatment are crucial in combating malaria.
Methods: We evaluated the diagnostic performance of three Rapid Diagnostic Tests (RDTs) in diagnosing febrile patients, namely: Abbott NxTek Eliminate Malaria Ag Pf (detecting HRP2), Rapigen Biocredit Malaria Ag Pf (detecting HRP2 and LDH on separate bands), and SD Bioline Malaria Ag Pf (detecting HRP2). Results were compared to qPCR.
Results: Among 449 clinical patients, 45.7% (205/449) tested positive by qPCR for with a mean parasite density of 12.5parasites/μL. The sensitivity of the Biocredit RDT was 52.2% (107/205), NxTek RDT was 49.3% (101/205), and Bioline RDT was 40.5% (83/205). When samples with parasite densities lower than 20 parasites/uL were excluded (n=116), a sensitivity of 88.8% (79/89, NxTek), 89.9% (80/89, Biocredit), and 78.7% (70/89, Bioline) was obtained. All three RDTs demonstrated specificity above 95%. The limits of detection was 84 parasites/μL (NxTek), 56 parasites/μL (Biocredit, considering either HRP2 or LDH), and 331 parasites/μL (Bioline). None of the three qPCR-confirmed positive samples, identified solely through the LDH target, carried deletions.
Conclusion: The Biocredit and NxTek RDTs demonstrated comparable diagnostic efficacies and both RDTs performed better than Bioline RDT.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10602185 | PMC |
| http://dx.doi.org/10.21203/rs.3.rs-3459263/v1 | DOI Listing |
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