Figure 1

Graph showing the least-square linear regression line y = 1.376 x (black dashed lines) over a scatter plot showing the continuous relationship between the percentage of febrile children with infection and infection prevalence among all children and plotted with the 95% confidence interval. Two lines surrounding the best-fit line (grey solid lines) define the confidence interval. We also show the point at which febrile infections exceeds 50% and the corresponding value for infection prevalence (black dotted horizontal and vertical lines) including a line illustrating the 50%-50% random chance of symptomatic infection.