Probability of parasitological failure by microscopy in Burkina-Faso and Mali. Notes: This graph shows the crude and PCR adjusted risk of parasitological failure in Mali and Burkina-Faso. Treatment failure was defined according to the standard WHO criteria and the cumulative risk of recurrence was determined using Kaplan-Meier survival analysis. Blue lines represent Mali and red lines Burkina-Faso. Panel A and panel B represent survival analysis for crude and PCR adjusted analysis, respectively.