Contact: Phil Sneiderman
prs@jhu.edu
443-287-9960
Johns Hopkins University
Caption: This map indicates the prevalence of flu in the United States in the first week of January 2012, as measured by the volume of flu-related tweets. States with higher flu rates are colored in a darker red. Last year's flu affected relatively few Americans.
Credit: Mark Dredze/JHU
Usage Restrictions: None
Related news release: Using Twitter to track the flu: A better way to screen the Tweets