Development and Clinical Validation of Iso-IMRS: A Novel Diagnostic Assay for <i>P. falciparum</i> Malaria

Nikunja Kolluri, Shwetha Kamath, Patrick Lally, Mina Zanna, James E. Galagan, Jesse Gitaka, Moses Kamita, Mario Cabodi, Srinivasa Raju Lolabattu, Catherine M. Klapperich

Analytical Chemistry · 2021 · 11 citations · 37 references

DOIFull text

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Concepts

Abstract

parasite DNA via strand displacement amplification. Our novel assay shows a LLOD of ∼1 parasite/μL within a 30 min amplification time. The assay was demonstrated with clinical samples using patient blood and saliva. We further characterized the assay using direct amplicon next-generation sequencing and modified the assay to work with a visual readout. The technique developed here achieves similar analytical sensitivity to current gold standard PCR assays requiring a fraction of time and resources for PCR. This highly sensitive isothermal assay can be more easily adapted to field settings, making it a potentially useful tool for malaria elimination.

References

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