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From the following article:

Detecting influenza epidemics using search engine query data

Jeremy Ginsberg, Matthew H. Mohebbi, Rajan S. Patel, Lynnette Brammer, Mark S. Smolinski & Larry Brilliant

Nature 457, 1012-1014(19 February 2009)

doi:10.1038/nature07634

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Figure 1

An evaluation of how many top-scoring queries to include in the ILI-related query fraction.

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Figure 2

A comparison of model estimates for the mid-Atlantic region (black) against CDC-reported ILI percentages (red), including points over which the model was fit and validated.

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Figure 3

ILI percentages estimated by our model (black) and provided by the CDC (red) in the mid-Atlantic region, showing data available at four points in the 2007-2008 influenza season.

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Table 1 - Unfortunately we are unable to provide accessible alternative text for this. If you require assistance to access this image, or to obtain a text description, please contact npg@nature.com

Table 1

Topics found in search queries which were found to be most correlated with CDC ILI data

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