Twitter Flu Map 2013 (IMAGE)

Johns Hopkins University

Twitter Flu Map 2013

Caption

This map indicates the prevalence of flu in the United States in the first week of January this year, 2013, as measured by the volume of flu-related tweets. States with higher flu rates are colored in a darker red. This year, in contrast to last January, the nation is awash in flu cases.

Credit

Mark Dredze/JHU

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