Event-based internet biosurveillance: relation to epidemiological observation

Autor: Nelson Noele P, Yang Li, Reilly Aimee R, Hardin Jessica E, Hartley David M
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Emerging Themes in Epidemiology, Vol 9, Iss 1, p 4 (2012)
Druh dokumentu: article
ISSN: 1742-7622
DOI: 10.1186/1742-7622-9-4
Popis: Abstract Background The World Health Organization (WHO) collects and publishes surveillance data and statistics for select diseases, but traditional methods of gathering such data are time and labor intensive. Event-based biosurveillance, which utilizes a variety of Internet sources, complements traditional surveillance. In this study we assess the reliability of Internet biosurveillance and evaluate disease-specific alert criteria against epidemiological data. Methods We reviewed and compared WHO epidemiological data and Argus biosurveillance system data for pandemic (H1N1) 2009 (April 2009 – January 2010) from 8 regions and 122 countries to: identify reliable alert criteria among 15 Argus-defined categories; determine the degree of data correlation for disease progression; and assess timeliness of Internet information. Results Argus generated a total of 1,580 unique alerts; 5 alert categories generated statistically significant (p Conclusion Confirmed pandemic (H1N1) 2009 cases collected by Argus and WHO methods returned consistent results and confirmed the reliability and timeliness of Internet information. Disease-specific alert criteria provide situational awareness and may serve as proxy indicators to event progression and escalation in lieu of traditional surveillance data; alerts may identify early-warning indicators to another pandemic, preparing the public health community for disease events.
Databáze: Directory of Open Access Journals