<p>ADRB indexes determined as described in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0009871#s2" target="_blank">Materials and Methods</a> using a single pool of PMN: with immune (HIS) or non-immune (NIS) sera only (blue); with merozoites and immune (HIS, S2, S3, or S4) or non-immune (NIS, S5, S6) sera (green) or the same with fMLP activated PMN (yellow); with normal (light red), parasitized (dark red) RBC, or lysed parasitized RBC (3x freeze-thawed) (grey) in the presence of immune or non-immune sera.</p
