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Modeling The Lifecycle Of Ebola Virus Under Biosafety Level 2 Conditions With Virus-like Particles Containing Tetracistronic Minigenomes
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Characterizing Ebola Transmission Patterns Based on Internet News Reports.

Julie M Cleaton1, Cecile Viboud2, Lone Simonsen3

  • 1School of Public Health, Georgia State University, Atlanta College of Liberal Arts and Sciences, Arizona State University, Tempe.

Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America
|September 5, 2015
PubMed
Summary

Internet news reports effectively tracked Ebola virus disease (EVD) epidemiological patterns during the 2014-2015 West Africa outbreak, complementing traditional surveillance data. This method provides timely insights into disease transmission routes and outcomes.

Keywords:
EbolaWest Africafuneral transmissionhospital transmissiontransmission patterns

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Area of Science:

  • Epidemiology
  • Infectious Disease Outbreak Analysis
  • Public Health Surveillance

Background:

  • Traditional surveillance systems often lack real-time data on patient exposure and contact patterns during emerging infectious disease outbreaks.
  • Internet news reports offer a potential supplementary data source for characterizing epidemiological patterns.

Purpose of the Study:

  • To validate the systematic collection of Internet news reports for characterizing epidemiological patterns of Ebola virus disease (EVD) during the 2014-2015 West African outbreak.
  • To assess the utility of news reports in providing timely estimates of key epidemiological parameters.

Main Methods:

  • Analysis of 58 news reports detailing 79 EVD clusters (286 cases) in Guinea, Sierra Leone, and Liberia from January 2014 to February 2015.
  • Characterization of exposure sources, transmission routes, reproduction number, and case fatality rate.

Main Results:

  • The majority of exposures originated from family contact (57.3%), followed by hospitals (18.2%) and funerals (12.7%).
  • Funeral exposure was significantly higher in Sierra Leone (27.3%) compared to Guinea (18.2%) and Liberia (1.8%).
  • Transmission shifted from funeral-based to hospital-based, with both declining post-intervention; mean reproduction number was 2.3, and case fatality rate was 74.4%.

Conclusions:

  • Findings from news reports closely align with traditional epidemiological surveillance data and prior outbreak reports.
  • Real-time information from credible news sources can provide timely epidemiological parameter estimates, especially when traditional data is limited.
  • This approach supports the use of non-traditional data streams for enhanced public health surveillance during outbreaks.