Table 1.
Diagnostic modality | Platform | Limit of detection (parasites/µL) | Number of samples processed (per assay or per day) | Validated on symptomatic or microscopy positive samples | Validated on asymptomatic or surveillance samples | Assay evaluated in resource-limited setting | Costa |
---|---|---|---|---|---|---|---|
Microscopy | Light microscopy [65] | 50–499 | 15 min/slidec | Yes | Yes | Yes | $ |
RDT | Immunochromatographic lateral flow assayb [8] | 200 | 15–20 min/testd | Yes | Yes | Yes | $ |
PCR | Ultrasensitive qPCR [32] | 0.022 (blood) | 40 samples/day (manual) 140 samples/day (automated) |
Yes | No | No | $$ |
Multiplex Malaria Sample Ready [34] | 0.244 (blood) | uncertain | Uncertain | Uncertain | Yes | $$ | |
Mobile PCR [35] | 2 (DBS) | 96 well plate, 240 samples/day | Uncertain | Yes | Yes | $$ | |
PET-PCR [37, 38] | 3.2 (blood) | Real-time PCR platform, presumed 72 samples | Uncertain | Yes | No | ? | |
Gelcycler [39] | 2 (blood) | 12 | Yes | Yes | No | $ | |
Multiplex microarray assay [40] | Uncertain | Uncertain | Yes | Uncertain | No | $$ | |
CLIP-PCR [42] | 0.3 (DBS) | 96 well plate + pooled DBS | Yes | Yes | No | $ | |
LAMP | RealAmp [58] | 0.4–40 (blood) | 8 tubes | Yes | Yes | Yes | $$ |
HtLAMP [57] | 2.5 (blood) | 96 well plate | Yes | No | Yes | $ | |
LAMP-LFD [60] | Uncertain | 1.5 h/test | Yes | No | No | ? | |
NINA-LAMP [63] | Uncertain | 5 tubes | Yes | Yes | Yes | ? | |
LoopAmp [51] | 5 (blood) | 16 | Yes | Yes | Yes | ? |
DBS dried blood spot
a$ < $US2; $$ > $US2, ? = cost unknown
bMalaria Rapid Diagnostic Test Performance—results of WHO product testing of malaria RDTs Round 5 (2013)
cWHO Malaria Microscopy Quality Assurance Manual Version 1, 2009
dCDC website ww.cdc.gov/malaria/malaria_worldwide/reduction/dx_rdt.html