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Journal Article > Research

A Pan Plasmodium lateral flow recombinase polymerase amplification assay for monitoring malaria parasites in vectors and human populations

Higgins M, Kristan M, Collins EL, Messenger LA, Dombrowski JG, Vanheer LN, Nolder D, Drakeley CJ, Stone W, Mahamar A, Bousema T, Delves M, Bandibabone J, N’Do S, Bantuzeko C, Zawadi B, Walker T, Sutherland CJ, Marinho CRF, Cameron MM, Clark TG, Campino S
Abstract

Robust diagnostic tools and surveillance are crucial for malaria control and elimination efforts. Malaria caused by neglected Plasmodium parasites is often underestimated due to the lack of rapid diagnostic tools that can accurately detect these species. While nucleic-acid amplification technologies stand out as the most sensitive methods for detecting and confirming Plasmodium species, their implementation in resource-constrained settings poses significant challenges. Here, we present a Pan Plasmodium recombinase polymerase amplification lateral flow (RPA–LF) assay, capable of detecting all six human infecting Plasmodium species in low resource settings. The Pan Plasmodium RPA-LF assay successfully detected low density clinical infections with a preliminary limit of detection between 10–100 fg/µl for P. falciparum. When combined with crude nucleic acid extraction, the assay can serve as a point-of-need tool for molecular xenomonitoring. This utility was demonstrated by screening laboratory-reared Anopheles stephensi mosquitoes fed with Plasmodium-infected blood, as well as field samples of An. funestus s.l. and An. gambiae s.l. collected from central Africa. Overall, our proof-of-concept Pan Plasmodium diagnostic tool has the potential to be applied for clinical and xenomonitoring field surveillance, and after further evaluation, could become an essential tool to assist malaria control and elimination.

Subject Area
malaria
DOI
10.1038/s41598-024-71129-4
Published Date
30-Aug-2024
PubMed ID
39215071
Languages
English
Journal
Scientific Reports
Volume / Issue / Pages
Volume 14, Issue 1, Pages 20165
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