Medication sales and syndromic surveillance, France
- PMID: 16704778
- PMCID: PMC3291431
- DOI: 10.3201/eid1203.050573
Medication sales and syndromic surveillance, France
Abstract
Although syndromic surveillance systems using nonclinical data have been implemented in the United States, the approach has yet to be tested in France. We present the results of the first model based on drug sales that detects the onset of influenza season and forecasts its trend. Using weekly lagged sales of a selected set of medications, we forecast influenzalike illness (ILI) incidence at the national and regional level for 3 epidemic seasons (2000-01, 2001-02, and 2002-03) and validate the model with real-time updating on the fourth (2003-04). For national forecasts 1-3 weeks ahead, the correlation between observed ILI incidence and forecast was 0.85-0.96, an improvement over the current surveillance method in France. Our findings indicate that drug sales are a useful additional tool to syndromic surveillance, a complementary and independent source of information, and a potential improvement for early warning systems for both epidemic and pandemic planning.
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References
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- Centers for Disease Control and Prevention, Epidemiology Program Office, Division of Public Health Surveillance and Informatics. Annotated Bibliography for Syndromic Surveillance. 2003. Aug 13 [cited 2003 Sep 1]. Available from http://www.cdc.gov/epo/dphsi/syndromic/
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