ShareCompartir
Ebola Virus Disease Outbreak — West Africa, September 2014
Please note: An erratum has been published for this article. To view the erratum, please click here.
On September 30, 2014, this report was posted as an MMWR Early Release on the MMWR website (http://www.cdc.gov/mmwr).
, CDC; Ministries of Health of Guinea, Sierra Leone, Liberia, Nigeria, and Senegal; Viral Special Pathogens Branch, National Center for Emerging and Zoonotic Infectious Diseases, CDC (Corresponding author: , bknust@cdc.gov, 404-639-1104)
CDC is assisting ministries of health and working with other organizations to control and end the ongoing outbreak of Ebola virus disease (Ebola) in West Africa (1). The updated data in this report were compiled from ministry of health situation reports and World Health Organization (WHO) sources. Total case counts include all suspected, probable, and confirmed cases as defined by each country (2). These data reflect reported cases, which make up an unknown proportion of all actual cases. The data also reflect reporting delays that might vary from country to country.
According to the latest WHO update (2), a total of 6,574 Ebola cases had been reported as of September 23 from five West Africa countries (Guinea, Liberia, Nigeria, Senegal, and Sierra Leone) (Figure 1). The highest reported case counts were from Liberia (3,458 cases), Sierra Leone (2,021), and Guinea (1,074).
Geographic distribution of the number of Ebola cases reported during August 31–September 23 indicates that recent case counts continue to be high in the areas where Liberia, Sierra Leone, and Guinea meet (Figure 2).
Geographic distribution of the cumulative incidence of Ebola, as of September 23, indicates that the highest cumulative incidence (>100 cases per 100,000 population) was found in five districts in Guinea (Boffa, Dubreka, Gueckedou, Macenta, and Telimele), two districts in Liberia (Loffa and Margibi), and two districts in Sierra Leone (Kailahun and Kenema) (Figure 3).
The latest updates on the 2014 Ebola outbreak in West Africa, including case counts, are available at http://www.cdc.gov/vhf/ebola/outbreaks/guinea/index.html. The most up-to-date clinical guidelines on the 2014 Ebola outbreak in West Africa are available at http://www.cdc.gov/vhf/ebola/hcp/index.html.
Acknowledgments
Lagos and Rivers state governments, Nigeria. Nigeria Center for Disease Control. World Health Organization. CDC response teams in country. Geospatial Research, Analysis, and Services Program, CDC. Situational Awareness Team, Office of Public Health Preparedness and Response, CDC.
References
- Dixon MG, Schafer IJ. Ebola viral disease outbreak—West Africa, 2014. MMWR 2014;63:548–51.
- World Health Organization. Ebola response roadmap update 26 September 2014. Geneva, Switzerland: World Health Organization; 2014. Available at http://apps.who.int/iris/bitstream/10665/135029/1/roadmapupdate26sept14_eng.pdf?ua=1.
FIGURE 1. Cumulative number of Ebola virus disease cases reported — five countries, West Africa, March 29–September 20, 2014
Sources: Situation reports received from the ministries of health of Guinea, Liberia, Nigeria, Senegal, and Sierra Leone, and the World Health Organization.
Alternate Text: The figure above is a bar chart showing the cumulative number of Ebola virus disease cases reported in five countries in West Africa during March 29-September 20, 2014. According to the latest World Health Organization update, a total of 6,574 Ebola cases had been reported as of September 23 from five West Africa countries (Guinea, Liberia, Nigeria, Senegal, and Sierra Leone). The highest reported case counts were from Liberia (3,458 cases), Sierra Leone (2,021), and Guinea (1,074).
FIGURE 2. Number of new cases of Ebola virus disease reported — West Africa, August 31–September 20, 2014
Sources: Situation reports received from the ministries of health of Guinea, Liberia, Nigeria, Senegal, and Sierra Leone, and the World Health Organization.
Alternate Text: The figure above is a map of West Africa showing the number of new cases of Ebola virus disease reported during August 31-September 20, 2014. Geographic distribution of the number of Ebola cases reported during August 31-September 23 indicates that recent case counts continue to be high in the areas where Liberia, Sierra Leone, and Guinea meet.
FIGURE 3. Ebola virus disease cumulative incidence* — West Africa, September 20, 2014
* Cumulative number of reported Ebola virus disease cases per 100,000 persons since December 22, 2013.
Alternate Text: The figure above is a map of West Africa showing Ebola virus disease cumulative incidence as of September 20, 2014. Geographic distribution of the cumulative incidence of Ebola, as of September 23, indicates that the highest cumulative incidence (>100 cases per 100,000 population) was found in five districts in Guinea (Boffa, Dubreka, Gueckedou, Macenta, and Telimele), two districts in Liberia (Loffa and Margibi), and two districts in Sierra Leone (Kailahun and Kenema).
Use of trade names and commercial sources is for identification only and does not imply endorsement by the U.S. Department of
Health and Human Services.
References to non-CDC sites on the Internet are
provided as a service to MMWR readers and do not constitute or imply
endorsement of these organizations or their programs by CDC or the U.S.
Department of Health and Human Services. CDC is not responsible for the content
of pages found at these sites. URL addresses listed in MMWR were current as of
the date of publication.
All MMWR HTML versions of articles are electronic conversions from typeset documents.
This conversion might result in character translation or format errors in the HTML version.
Users are referred to the electronic PDF version (http://www.cdc.gov/mmwr)
and/or the original MMWR paper copy for printable versions of official text, figures, and tables.
An original paper copy of this issue can be obtained from the Superintendent of Documents, U.S.
Government Printing Office (GPO), Washington, DC 20402-9371;
telephone: (202) 512-1800. Contact GPO for current prices.
**Questions or messages regarding errors in formatting should be addressed to
mmwrq@cdc.gov.
