Reassessing Google Flu Trends Data for Detection of Seasonal and Pandemic Influenza: A Comparative Epidemiological Study at Three Geographic Scales
Table 1
Retrospective and prospective performance of original and updated Google Flu Trends (GFT) algorithm compared with national (United States), regional (Mid-Atlantic States) and local (New York City) weekly influenza-like illness (ILI) surveillance data, 2003–2013.