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Figure 3 | BMC Public Health

Figure 3

From: Toward unsupervised outbreak detection through visual perception of new patterns

Figure 3

A. These ICPCviews correspond to 3 specific weeks surrounding the 2006 flu outbreak. The patient numbers were subtracted from the control ICPCview of 200 codes randomly chosen from the rest of the year; only the positive differences have been retained. Color coding is as described in the legend to Figure 2. The outbreak period was defined using the Serfling method [27]. B. Enlarged views of the General and Digestive patterns generated during the 3 weeks of interest.

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