Figure 4From: Investigation of clusters of giardiasis using GIS and a spatial scan statisticSpatial distribution of significant low rate giardiasis clusters in southern Ontario (1990–98). The numerical identification of the clusters are in order of their likelihood ratio; the cluster with the highest likelihood ratio is cluster 1 (most likely cluster) while cluster 2 had the second highest likelihood ratio, etc. For more detailed cluster information, refer to Table 2.Back to article page