Fig. 1
From: Survival analysis of diagnostic assays in Plasmodium falciparum malaria
Number of days between the time from last P. falciparum-positive specimen by microscopy was collected and the time when subsequent specimens which were microscopically negative but positive by either qPCR or BinaxNOW were collected for each case. Copy number from each specimen in each reaction was plotted for qPCR. For RDT, 1.0 indicates a positive result, whereas −1.0 indicates a negative result