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IgG reactivity to different antigenic sources is highly correlated. IgG anti-brain and anti-E. coli derived PCA factor-1 scores, respectively, are displayed in two dimensions. N indicates non-exposed, X and + exposed aparasitemic subjects without and with previous malaria, respectively (B,C). Circles indicate HBV-, rhombi HBV+ parasitemics, open symbols asymptomatic and closed symbols symptomatic subjects.
