Fig. 1.
Distribution of the anti-Phlebotomus argentipes salivary gland homogenate (SGH) IgG antibody responses of volunteers from Bangladesh (532 samples) and the negative control samples (53 samples). Dots represent O.D. values for individual serum samples measured by ELISA. The dashed line marks the cut-off value based on the negative control serum samples. The lower and upper borders of the boxplots are the 25th and 75th percentile of the O.D. values (Q1-Q3), the bold lines within the boxes represent the median values, the vertical bars indicate the minimum and maximum values calculated as Q1 ± 1.5 × IQR (interquartile range).