Recombinase Polymerase Amplification and Lateral Flow Assay for Ultrasensitive Detection of Low-Density Plasmodium falciparum Infection from Controlled Human Malaria Infection Studies and Naturally Acquired Infections

Author:

Lalremruata Albert1,Nguyen The Trong12,McCall Matthew B. B.13,Mombo-Ngoma Ghyslain13,Agnandji Selidji T.13,Adegnika Ayôla A.134,Lell Bertrand13,Ramharter Michael356,Hoffman Stephen L.7,Kremsner Peter G.13,Mordmüller Benjamin13

Affiliation:

1. Institut für Tropenmedizin, Universität Tübingen and German Center for Infection Research, Tübingen, Germany

2. Vietnamese—German Center of Excellence in Medical Research, Hanoi, Vietnam

3. Centre de Recherches Médicales de Lambaréné and African Partner Institution, German Center for Infection Research, Lambaréné, Gabon

4. Department of Parasitology, Leiden University Medical Center, Leiden, The Netherlands

5. Department of Tropical Medicine, Bernhard Nocht Institute for Tropical Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany

6. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany

7. Sanaria Inc., Rockville, Maryland, USA

Abstract

Microscopy and rapid diagnostic tests (RDTs) are the main diagnostic tools for malaria but fail to detect low-density parasitemias that are important for maintaining malaria transmission. To complement existing diagnostic methods, an isothermal reverse transcription-recombinase polymerase amplification and lateral flow assay (RT-RPA) was developed. We compared the performance with that of ultrasensitive reverse transcription-quantitative PCR (uRT-qPCR) using nucleic acid extracts from blood samples ( n  = 114) obtained after standardized controlled human malaria infection (CHMI) with Plasmodium falciparum sporozoites.

Funder

HHS | National Institutes of Health

Deutsches Zentrum für Infektionsforschung

Publisher

American Society for Microbiology

Subject

Microbiology (medical)

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