Figure 2From: Individual-level space-time analyses of emergency department data using generalized additive modeling Cape Cod Study Area. Cape Cod is located in Massachusetts in the northeast United States. Each point represents the geocoded billing address of one participant. The distribution of (a) the cases with gastrointestinal illness is similar to that of (b) the controls with respiratory symptoms. Locations have been geographically altered to preserve confidentiality.Back to article page