Human Subcutaneous Dirofilariasis, Russia
Figure 2. Serologic analysis (box and whisker plot) for antibodies to Dirofilaria repens somatic antigen from normal controls (NC) and patients with human subcutaneous dirofilariasis (HSD). The horizontal line shows the optical density (OD) values of 25–75% of the examined sera. The large box shows OD values between the first and third quartiles, the small box shows the median, and error bars show maximum and minimum OD values. A positive antibody response was defined as an OD value greater than the mean value ±3 standard deviations from 14 normal controls.