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Fig. 2 | Malaria Journal

Fig. 2

From: Dry season prevalence of Plasmodium falciparum in asymptomatic Gambian children, with a comparative evaluation of diagnostic methods

Fig. 2

Prevalence and density of P. falciparum infection in asymptomatic Gambian children. A Prevalence of malaria in the cohort as determined by varATS qPCR. B Prevalence is also reported by local village clusters (see Table 2; Additional file 1: Fig. S1 for detailed information). C varATS PCR cycle threshold (Ct) values for study cohort and 10-fold dilutions of the NIBSC/WHO International Standard (NIBSC code 04/176), plotted against parasite density (international units, IU, per mL). D Parasite density (parasites/µL) was determined by qPCR using the NIBSC/WHO standard, wherein 1 × 108 IU/mL is equal to 4.7 × 104 parasites/µL [19]. Cohort median parasite burden = 3.12 parasites/µL, IQR 1.076–19.110. Dotted line represents LLOQ, 0.47 parasites/µL

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