Volume 10, Number 10, October 2004

Syndromic Surveillance for Influenzalike Illness in Ambulatory Care Setting

Benjamin Miller,* Heidi Kassenborg,† William Dunsmuir,‡ Jayne Griffith,* Mansour Hadidi,* James D. Nordin,§ and Richard Danila*
*Minnesota Department of Health, Minneapolis, Minnesota, USA; †Minnesota Department of Agriculture, St. Paul, Minnesota, USA; ‡University of New South Wales, Sydney, Australia; and §HealthPartners Research Foundation, Minneapolis, Minnesota, USA

Figure 2. Cumulative sum (CUSUM) chart signaling a significant signal corresponding to a confirmed influenza A outbreak occurring December 2000 and January 2001. CUSUM decision interval (horizontal broken line); CUSUM chart signals 24 days earlier when the analysis is stratified by age: >65 years (dotted line) and all ages (solid line).

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This page last reviewed August 25, 2004

Emerging Infectious Diseases Journal
National Center for Infectious Diseases
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