Fig. 5
From: A threshold-free approach with age-dependency for estimating malaria seroprevalence
Age-dependent mixture distributions of PfAMA1 antibodies for individuals between ages 1 and 16 using M2. The blue line shows fitted distributions derived from Eqs. (3), (9) and (11). The red dotted lines illustrate the seropositivity thresholds (\(\mu _{S^-} + 3 \sigma _{S^-}\)), above which individuals would be classified as \(S^+\) in M1. Note that the red dotted lines are for illustration only—M2 does not use thresholds