Google Flu Trends in 121 US cities

In contrast to the unusually early spike of flu activity we saw this October, Google Flu Trends is currently showing a low level of activity in the United States. Since the strain of influenza that is active (H1N1) is novel, ...<br />Extracted from: <a href='http://googleblog.blogspot.com/2010/01/google-flu-trends-in-121-us-cities.html'>http://googleblog.blogspot.com/2010/01/google-flu-trends-in-121-us-cities.html</a>