NMR detection limit for parasitized cells. Panel A: The detection limit for intact parasites measured using the 60 MHz, 1.4 T NMR is ∼15,000 μL−1. Panel B: The detection limit for lysed parasites measured using the 60 MHz, 1.4 T NMR is ∼8,000–10,000 μL−1 (the same samples are shown in Panels A and B). Note that 1 mL of blood was used for each experiment.