Fig. 2.

Comparison of B19V IgG results by SIA and EIA. Represented is the comparison of IgG levels determined by SIA (y-axis) and EIA (x-axis) in sera from patients with symptomatic B19V-infection (circle in blue). Circle dots in red show two discrepancies between SIA and EIA. The controls were asymptomatic individuals of whom 63 were IgG positive by B19V VP2 (box dot in green). Shown with diamond are the IgG seronegative healthy individuals from the same control cohort. The horizontal and vertical dashed lines depict the B19V IgG SIA and EIA cutoff values, respectively