Fig. 4
Variation among replicate assays. A second Positive-Control (PC#2) and plasma from two adults (P2/064, P2/87) were used as positive controls on 13 plates in a separate avidity study conducted over a 30-day period. Horizontal bars represent means and SD for 13 replicates. Bottom 2 figures are based on the 9 samples shown in the figures above; trendline represents a simple linear regression