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2014 Ebola Outbreak in West Africa - Outbreak Distribution Map

Total Cases

Distribution map showing districts and cities reporting suspect cases of Ebola

Days Since Last Case

Map of West Africa showing when the last cases of Ebola occured.

CDC classification of countries with reported Ebola cases for evaluation of persons in the United States

Widespread transmission Affected areas
No countries currently in this classification None
Countries with former widespread transmission and current, established control measures1 Affected areas
Liberia2 Entire country
Sierra Leone3 Entire country
Guinea4 Entire country
Cases in urban settings with uncertain control measures5 Affected areas
No countries currently in this classification None
Cases in urban settings with effective control measures Affected areas
No countries currently in this classification None
Previously affected countries6 Affected areas
Nigeria Lagos, Port Harcourt
Senegal Dakar
Spain Madrid
United States Dallas, TX; New York City, NY
Mali Bamako
United Kingdom Scotland, England
Italy Sardinia

1 This category also includes countries that have experienced widespread transmission but are transitioning to being declared free of Ebola. The World Health Organization (WHO) is responsible for determining when a country will be declared free of Ebola virus transmission. Public health authorities in these countries should maintain active surveillance for new cases of Ebola and identify, locate, and monitor any potential contacts.

2 On May 13, 2015, CDC changed the country classification for Liberia to a country with former widespread transmission and current, established control measures.

3 On November 10, 2015, CDC changed the country classification for Sierra Leone to a country with former widespread transmission and current, established control measures.

4 On December 29, 2015, CDC changed the country classification for Guinea to a country with former widespread transmission and current, established control measures.

5 Transmission in urban areas indicates the potential for spread through international air travel. Control measures in these countries are considered to be uncertain because of the inability of public health authorities to identify, locate, or monitor a large proportion of potential contacts. People arriving from these countries should be screened upon entry.

6 In these countries, which previously had locally acquired or imported Ebola cases, at least 42 days (two incubation periods) have elapsed since the last day that any person in the country had contact with a person with confirmed Ebola.

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