Fig. 4

Persistence in uRDT detection post-treatment. A Kaplan–Meier survival curve showing the probability of remaining uRDT positive following successful treatment for symptomatic P. falciparum infection. The shaded region represents the median model’s 95% CI. Median time to uRDT negativity was 33 days (95% CI 28–47), with day of antimalarial drug treatment for symptomatic infection defined as day 0. Samples with evidence of unsuccessful treatment or recurrent infection, defined as those positive for P. falciparum by microscopy at any point after 1 day post-treatment, were excluded. uRDT ultra-sensitive rapid diagnostic test