TRACKING EMERGING VIRUSES – October 7, 2025 – EBOLA
“During the historic response to the 2014-2016 West Africa Ebola epidemic, thousands of CDC staff contributed unique expertise in epidemiology, laboratory, infection prevention and control, community engagement, and more. Ten years later, the lessons learned from this response continue to transform the world and save lives.
Since 2014, CDC has:
-strengthened country lab capabilities to detect viral hemorrhagic pathogens
-created surveillance systems to collect and report action-oriented data
-built emergency operations centers to respond to outbreaks, and
-bolstered the local workforce, including disease detectives and frontline responders to investigate viral hemorrhagic fevers and outbreaks.
CDC’s core capabilities yielded immediate returns in West Africa and continue to prevent local outbreaks from spiraling into epidemics. When Guinea faced Ebola again in 2021, they identified the outbreak in 15 days and received laboratory confirmation in one day. Instead of international experts, 179 CDC-trained local disease detectives investigated. The outbreak was stopped after only 23 cases.
The magnitude and rapid spread of the 2014 Ebola outbreak showed that the U.S. is vulnerable if we aren’t prepared. It redefined our understanding of high-consequence pathogens and demonstrated their significant potential to threaten national security. Investing in comprehensive core capabilities at home and abroad – including genomic sequencing, advanced molecular detection, and wastewater surveillance – is the most effective and least expensive way to stop infectious disease threats before they can harm Americans and people across the globe.” (1)
“When Ebola virus resurfaced in West Africa in December 2013, public health officials were hopeful that it could be contained, as it had been in past outbreaks.
But the virus continues to ravage communities in Africa and has now spread to the United States and Europe. The number of new cases in Africa make it likely that there will continue to be cases in the United States.
We’ve put together a timeline to track the U.S. response to Ebola, with the most recent events at the top. (International coverage by NPR continues at the Goats and Soda blog.) Check back, as we’re regularly updating this list.” (2)
December 2, 2014. FACT SHEET: Update on the Ebola Response, https://obamawhitehouse.archives.gov/the-press-office/2014/12/02/fact-sheet-update-ebola-response
February 11, 2015. FACT SHEET: Progress in Our Ebola Response at Home and Abroad, https://obamawhitehouse.archives.gov/the-press-office/2015/02/11/fact-sheet-progress-our-ebola-response-home-and-abroad
“The EU is supporting the emergency response to the outbreak of Ebola virus in the Democratic Republic of the Congo, officially declared on the 4 September 2025 by the Congolese ministry of health. With 42 deaths recorded out of 64 cases, the current outbreak has a fatality rate of around 66%. The most urgent priorities on the ground are establishing access to the extremely remote areas and providing health response by medical experts trained in Ebola-specific equipment to help curb the spread of the virus. The EU through its Emergency Response Coordination Centre has mobilised a diverse response package, including:
-deploying a specially equipped helicopter as part of the EU Humanitarian Air Flight operation
-delivering a temporary office and accommodation set-up in the most affected Bulape province, hosting 36 healthcare experts for 3 months
-€1.8 million in emergency humanitarian funding to strengthen the first response on the ground by our humanitarian partners.’
-2 experts from Norway trained in medical evacuations and patient isolation to be deployed as members of WHO response and coordination team via the EU Civil Protection Mechanism” (3)
“More than half of survivors of the Sudan Ebola virus still suffer serious health problems two years post-infection and the virus can persist in semen and breast milk for months after recovery, according to the first study examining the virus’s long-term effects.
The study, led by researchers at Washington State University, found 57.5% of the survivors of an outbreak in Uganda from 2022–23 reported ongoing and debilitating health issues that interfered with their daily lives. The detection of traces of the virus in semen and breast milk also raised concerns about the potential for sexual and mother-to-child transmission. The findings were recently published in the journal BMC Medicine.
“This is the first time anyone has been able to closely follow Sudan Ebola survivors over the long term, and the results show the virus continues to affect people’s lives well after an outbreak ends,” said lead researcher Kariuki Njenga, a professor in the WSU College of Veterinary Medicine’s Paul G. Allen School for Global Health and senior scientist at WSU Global Health – Kenya. “Just as concerning is the fact we detected the virus in semen and breast milk, which shows there is a risk survivors could pass on Ebola months after recovery.”” (4)
1.Reflecting on a Historic Ebola Response, https://www.cdc.gov/global-health/impact/historic-ebola-response.html
2.Ebola In The United States: What Happened When, By Alison Bruzek, https://www.npr.org/sections/health-shots/2014/10/15/356098903/ebola-in-the-united-states-what-happened-when
3.The EU is mobilising emergency support to Democratic Republic of the Congo in response to the ongoing Ebola outbreak, https://civil-protection-humanitarian-aid.ec.europa.eu/news-stories/news/eu-mobilising-emergency-support-democratic-republic-congo-response-ongoing-ebola-outbreak-2025-10-03_en
4.Sudan Ebola virus can persist in survivors for months, WSU study shows, By Devin Rokyt, https://news.wsu.edu/press-release/2025/10/02/sudan-ebola-virus-can-persist-in-survivors-for-months-wsu-study-shows/
curated by Jonathan M. Metsch, Dr.P.H.
Clinical Professor of Environmental Medicine, Icahn School of Medicine at Mount Sinai