Yesterday Google announced its post at the Official Google Blog says:
Because we're committed to protecting your privacy, we made sure that the searches that we analyze for Google Flu Trends are not drawn from personally-identifiable search histories but rather from an aggregated set of hundreds of billions of searches.
In order to provide a rough geographic breakdown of potential flu outbreaks, we use IP address information from our anonymize those IP addresses at nine months. And we don't provide this aggregated, anonymized data to third parties. For more information about the privacy protections for Flu Trends check out our privacy policy
Hopefully,Google has put some minds at ease. For more on the tool, and coverage from yesterday.
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