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Figure 2 | BMC Public Health

Figure 2

From: Rapid detection of pandemic influenza in the presence of seasonal influenza

Figure 2

The joint probability distribution of (WCR, N HB ). The joint probability distribution of weekly case ratio (WCR), calculated from seasonal ILI cases aggregated over Scotland, and the number of health boards (NHB) reporting increases in the ILI cases over the previous week. This probability diagram was constructed using SERVIS data from six seasons, 2001-02 to 2006-07. WCR is binned with bin size 0.1. The inset plot zooms in on the left corner of the main plot.

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