Figure 2From: Visualization techniques and graphical user interfaces in syndromic surveillance systems. Summary from the Disease Surveillance Workshop, Sept. 11–12, 2007; Bangkok, ThailandRODS Epiplot Function of Sample Data – threshold, syndromic counts, and laboratory confirmed cases. Figure 2 shows an Epiplot of sample influenza data. The red line indicates the threshold level at which an alert would be generated; the blue line indicates respiratory syndromic counts from emergency departments of participating hospitals; the yellow line shows laboratory confirmed cases of influenza.Back to article page