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Figure 4 | International Journal of Health Geographics

Figure 4

From: Novel measurement of spreading pattern of influenza epidemic by using weighted standard distance method: retrospective spatial statistical study of influenza, Japan, 1999–2009

Figure 4

Compactness of influenza distributions representing by WSD circle. Comparison between typical clustered and dispersed distribution of influenza cases is shown. Left panel shows clustered pattern with small WSD value and right one shows dispersed pattern with large WSD. Radius of circle is equivalent to WSD value (unit: kilometers).

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International Journal of Health Geographics

ISSN: 1476-072X