Fig. 2

The distribution of blood group within asymptomatic and symptomatic and correlations between blood group and disease status. The distribution of the blood group is presented as ratios in a donut plot for all samples (A), asymptomatic (B) and symptomatic (C) and the correlations between blood group and disease status were presented as correlograms (D). The magnitude of Pearson residuals is shown on a colour scale of dark blue (positive correlation, 0.95–0.03) to white (no correlation) to red (negative correlation, −0.15 to −0.88) signal. The bigger the “dot”, the stronger or weaker the correlation coefficient