@article{Wu_Kelsey_2013, title={Early Detection of Influenza Activity Using Syndromic Surveillance in Missouri}, volume={5}, url={https://ojphi.org/ojs/index.php/ojphi/article/view/4461}, DOI={10.5210/ojphi.v5i1.4461}, abstractNote={This study compared weekly percent of influenza-like illness (ILI) in Early Notification of Community-based Epidemics (ESSENCE) to weekly counts of laboratory confirmed influenza cases and evaluated the early warning potential of the ESSENCE weekly ILI percent for five consecutive influenza seasons (2006-11) in Missouri. ESSENCE weekly ILI percent was significantly correlated with weekly counts of laboratory-confirmed influenza cases. Use of the ESSENCE percent ILI baseline provided two weeks of advanced warning for seasonal influenza activity. These findings justify the use of ESSENCE for influenza surveillance.}, number={1}, journal={Online Journal of Public Health Informatics}, author={Wu, Fei and Kelsey, Amy}, year={2013}, month={Mar.} }