Figure 1.

Chemiluminescence counts reflecting reactive oxygen species (ROS) production from PMNs challenged with Pseudomonas aeruginosa vaccine strains (PAO1, PAO3, PAO5, PAO6, PAO9, and PAO11). The chemiluminescence, given in counts per second (CPS), was measured using luminol in a microplate fluorescence reader (Wallac 1420 Victor2, Perkin Elmer) over 60 minutes of phagocytosis. Each panel shows the peak CPS ± SEM of experiments run in duplicate from 3 different donors. *Lowest concentration of S-IgY to give a significant increase in respiratory burst compared to the control (p < 0.05)