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. 2014 Jan 15;9(1):e85371. doi: 10.1371/journal.pone.0085371

Figure 3. Phagocytosis assay.

Figure 3

Phagocytic score of samples tested at different antibody concentrations is indicated. All purified IgG fractions and the positive control HIVIG revealed Fc-mediated effector functions compared to the negative control IVIG. The cut off value of confidence interval for IVIG has a phagocytic score of 194.77. All samples greater than the cut off are positive with 99% confidence.