2014 Ebola Outbreak in West Africa
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What's New
- October 29, 2014 - Updated Case Counts
- October 29, 2014 - Infographic: Is it Flu or Ebola? [PDF -1 page]
- October 27, 2014: Fact Sheet: Monitoring Symptoms and Controlling Movement to Stop Spread of Ebola
- Updated October 27, 2014: Interim U.S. Guidance for Monitoring and Movement of Persons with Potential Ebola Virus Exposure
- Updated October 27, 2014: Case Definition for Ebola Virus Disease (EVD)
- October 27, 2014: Epidemiologic Risk Factors to Consider when Evaluating a Person for Exposure to Ebola Virus
Overview
The 2014 Ebola epidemic is the largest in history, affecting multiple countries in West Africa. There were a small number of cases reported in Nigeria and a single case reported in Senegal; however, these cases are considered to be contained, with no further spread in these countries.
Two imported cases, including one death, and two locally acquired cases in healthcare workers have been reported in the United States. CDC and partners are taking precautions to prevent the further spread of Ebola within the United States. CDC is working with other U.S. government agencies, the World Health Organization (WHO), and other domestic and international partners and has activated its Emergency Operations Center to help coordinate technical assistance and control activities with partners. CDC has also deployed teams of public health experts to West Africa and will continue to send experts to the affected countries.
October 29, 2014
Outbreak Update
- On October 29, WHO released a situation report that included an increase of 3792 cases since the report released on October 22, 2014. WHO reports that the increase in total cases results from a more comprehensive assessment of patient databases. The additional 3792 cases have occurred throughout the epidemic period.
- On October 23, the New York City Department of Health and Mental Hygiene reported a case of Ebola in a medical aid worker who had returned to New York City from Guinea, where the medical aid worker had served with Doctors Without Borders. The diagnosis was confirmed by CDC on October 24.
- On October 23, Mali reported its first confirmed case of Ebola in a child who had traveled there from Guinea. The child passed away on October 24.
- WHO officially declared Senegal and Nigeria free of Ebola virus transmission on October 17 and 20, respectively.
- On October 15, a second healthcare worker at Texas Presbyterian Hospital who provided care for the index patient tested positive for Ebola. The patient is receiving care at a hospital in Atlanta, Georgia.
- On October 10, a healthcare worker at Texas Presbyterian Hospital who provided care for the index patient tested positive for Ebola. The patient has since recovered and was discharged from the NIH Clinical Center on October 24.
- CDC is implementing enhanced entry screening at five U.S. airports that receive over 94% of travelers from Guinea, Liberia, and Sierra Leone.
- On September 30, 2014, CDC confirmed the first travel-associated case of Ebola to be diagnosed in the United States. The patient passed away on October 8, 2014.
- New cases continue to be reported from Guinea, Liberia, and Sierra Leone.
- The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.
Previous Outbreak Updates (October 2014)
October 20, 2014
Outbreak Update
- The lines on the tabular situation reports, sent to WHO headquarters each day by its country office in Nigeria, have now been full of zeros for 42 days. On October 20, WHO officially declared that Nigeria is now free of Ebola virus transmission.
- On the morning of October 14, a second healthcare worker at Texas Presbyterian Hospital who provided care for the index patient reported to the hospital with a low-grade fever and was isolated. The healthcare worker tested positive for Ebola according to preliminary tests.
- On October 10, a healthcare worker at Texas Presbyterian Hospital who provided care for the index patient reported a low-grade fever and was referred for testing. The healthcare worker tested positive for Ebola according to preliminary tests by the Texas Department of State Health Services’ laboratory. The healthcare worker was isolated after the initial report of a fever and remains so now. CDC confirms that the healthcare worker is positive for Ebola.
- CDC is implementing enhanced entry screening at five U.S. airports that receive over 94% of travelers from Guinea, Liberia, and Sierra Leone.
- A confirmed case of Ebola has been reported in Spain.
- On September 30, 2014, CDC confirmed the first travel-associated case of Ebola to be diagnosed in the United States. The patient passed away on October 8, 2014.
- New cases continue to be reported from Guinea, Liberia, and Sierra Leone.
- Nigeria and Senegal have not reported any new cases since September 5, 2014, and August 29, 2014, respectively. All contacts in both countries have now completed their 21-day follow up, with no further cases of Ebola reported.
- The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.
October 15, 2014
Outbreak Update
- On the morning of October 14, a second healthcare worker at Texas Presbyterian Hospital who provided care for the index patient reported to the hospital with a low-grade fever and was isolated. The healthcare worker tested positive for Ebola according to preliminary tests.
- On October 10, a healthcare worker at Texas Presbyterian Hospital who provided care for the index patient reported a low-grade fever and was referred for testing. The healthcare worker tested positive for Ebola according to preliminary tests by the Texas Department of State Health Services’ laboratory. The healthcare worker was isolated after the initial report of a fever and remains so now. CDC confirms that the healthcare worker is positive for Ebola.
- CDC is implementing enhanced entry screening at five U.S. airports that receive over 94% of travelers from Guinea, Liberia, and Sierra Leone.
- A confirmed case of Ebola has been reported in Spain.
- On September 30, 2014, CDC confirmed the first travel-associated case of Ebola to be diagnosed in the United States. The patient passed away on October 8, 2014.
- New cases continue to be reported from Guinea, Liberia, and Sierra Leone.
- Nigeria and Senegal have not reported any new cases since September 5, 2014, and August 29, 2014, respectively. All contacts in both countries have now completed their 21-day follow up, with no further cases of Ebola reported.
- The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.
October 12, 2014
Outbreak Update
- On October 10, a healthcare worker at Texas Presbyterian Hospital who provided care for the index patient reported a low-grade fever and was referred for testing. The healthcare worker has tested positive for Ebola according to preliminary tests by the Texas Department of State Health Services’ laboratory. The healthcare worker was isolated after the initial report of a fever and remains so now. CDC confirms that the healthcare worker is positive for Ebola.
- CDC is implementing enhanced entry screening at five U.S. airports that receive over 94% of travelers from Guinea, Liberia, and Sierra Leone.
- A confirmed case of Ebola has been reported in Spain.
- On September 30, 2014, CDC confirmed the first travel-associated case of Ebola to be diagnosed in the United States. The patient passed away on October 8, 2014.
- New cases continue to be reported from Guinea, Liberia, and Sierra Leone.
- Nigeria and Senegal have not reported any new cases since September 5, 2014, and August 29, 2014, respectively. All contacts in both countries have now completed their 21-day follow up, with no further cases of Ebola reported.
- The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.
October 8, 2014
Outbreak Update
- CDC is implementing enhanced entry screening at five U.S. airports that receive over 94% of travelers from Guinea, Liberia, and Sierra Leone.
- A confirmed case of Ebola has been reported in Spain.
- On September 30, 2014, CDC confirmed the first travel-associated case of Ebola to be diagnosed in the United States. The patient passed away on October 8, 2014.
- New cases continue to be reported from Guinea, Liberia, and Sierra Leone.
- Nigeria and Senegal have not reported any new cases since September 5, 2014, and August 29, 2014, respectively. All contacts in both countries have now completed their 21-day follow up, with no further cases of Ebola reported.
- The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.
October 2, 2014
Outbreak Update
- On 9/30/2014, CDC confirmed, the first travel-associated case of Ebola to be diagnosed in the United States.
- New cases have been reported from Guinea, Liberia, and Sierra Leone. Nigeria and Senegal have not reported any new cases since September 5, 2014, and August 29, 2014, respectively. In Senegal, all contacts have now completed their 21-day follow up, with no further cases of Ebola reported.
- On August 29, 2014, Senegal's Ministry of Public Health and Social Affairs announced a case of Ebola virus disease (EVD) in Senegal. The case is in a man from Guinea who traveled to Senegal.
- The Democratic Republic of the Congo (DRC) has reported cases of Ebola. These cases are not related to the ongoing outbreak of Ebola in West Africa. For information on the outbreak in DRC, see the 2014 Ebola Outbreak in DRC page.
- HHS has contracted with Mapp Biopharmaceutical Inc. to develop and manufacture ZMapp. Mapp Biopharmaceutical will manufacture a small amount of the drug for early stage clinical safety studies and nonclinical studies.
- NIH will begin initial human testing of an investigational vaccine to prevent EVD in early September and is working with a company to develop an antiviral drug to treat Ebola.
- U.S. Department of Defense has funded two companies that are developing drug therapies for Ebola and is working with another company to develop an Ebola vaccine.
- CDC returned a staff member from West Africa by charter flight after the employee had low-risk contact with an international health worker who recently tested positive for Ebola. The CDC staff member was not sick with Ebola, did not show symptoms of the disease, and therefore posed no risk to friends, family, co-workers, or the public.
Case Counts*
*Case counts updated in conjunction with the World Health Organization updates and are based on information reported by the Ministries of Health.
As of October 27, 2014
(Updated October 29, 2014)
Total Cases: 13703*
Laboratory-Confirmed Cases: 7637
Total Deaths: 4922
*The increase in the total cases compared with the total released on October 25, 2014, results from a more comprehensive assessment of patient databases. The additional 3792 cases have occurred throughout the epidemic period.
- Page last reviewed: October 29, 2014
- Page last updated: October 29, 2014
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