Additional file 1. Fittings to Two-Component Finite Mixture Models for Antigen Data Collected by both Assay Protocols and Sample Types for Low Seroprevalence Antigens. Histograms are displayed for log-transformed MFI-bg values for the four least immunogenic malaria antigens as fit to a two-component finite mixture model. On each panel, estimates for lognormal mean and variance are displayed for the two components.