Fig. 1

Location, collection date, and parasite clearance rate associated with patient blood samples. a Location of clinics in Northwestern Thailand involved in the collection of samples used in this study. b Distribution of the parasite clearance rate half-life associated with each sample. Red dots indicate collection date (horizontal axis) and clearance rate half-life (vertical axis) of each isolate. Box plots summarize the distribution of clearance rate half-life within each time period. Box boundaries represent the first and third quartiles and the length of whiskers corresponds to 1.5 times the interquartile range. The distributions between adjacent time periods were compared using Wilcoxon rank sum tests