I had hoped that the next time I wrote about the ongoing Ebola outbreak in the Democratic Republic of the Congo (DRC), it would be to reflect on encouraging news. Unfortunately, the trajectory of the outbreak remains deeply concerning.
As of July 30, 2026, the outbreak has caused more than 3,600 confirmed cases and nearly 1,600 deaths, making it the largest Ebola outbreak ever recorded in the DRC and the second largest in history, surpassed only by the 2014–2016 West African epidemic. Even more striking than the numbers is the speed. In just over two months, this outbreak has already surpassed the total number of cases recorded during the DRC’s previous largest outbreak, which unfolded over nearly two years.
New anthropological research shared just a week ago offers an important clue as to how this happened. Although the findings have not yet undergone peer review, investigators who spent weeks interviewing nearly 100 healthcare workers, survivors, community leaders, bereaved families, coffin makers, and cemetery caretakers in Mongbwalu concluded that Ebola was likely spreading silently for roughly four months before it was formally recognized. By the time health authorities in Kinshasa confirmed Ebola, widespread community transmission was already underway.
Like Ebola is wont to do, it exploited silent chains of transmission, was amplified by traditional funeral gatherings, and took advantage of the social and demographic conditions that created the perfect storm for the outbreak to accelerate. From the moment the outbreak was formally recognized and a public health emergency declared, the response has largely been playing catch-up.
The outbreak is unfolding in an especially challenging setting. Its epicenter lies in Ituri Province, a region scarred by conflict, mass population displacement, and a well-founded mistrust of both government institutions and outside actors. It also comes just five months after the DRC declared the end of its previous Ebola outbreak, underscoring how relentless these epidemics can be.
All of this has unfolded against the backdrop of profound changes in global health financing. The DRC had previously relied on the United States for roughly 70% of its humanitarian response funding, and the funding cuts that followed the dismantling of USAID likely contributed to delays in outbreak detection and response capacity, according to humanitarian organizations and global health experts. While it is impossible to quantify exactly how much these cuts influenced the current epidemic, it is difficult to imagine that reductions in surveillance, laboratory capacity, and emergency preparedness had no effect.
Much of what is unfolding today carries a profound sense of déjà vu.
The deadliest Ebola epidemic in history, which swept through Guinea, Liberia, and Sierra Leone between 2014 and 2016, caused more than 28,600 cases and over 11,300 deaths. Although those countries had never previously experienced Ebola, two of them were still recovering from years of civil war that had devastated their healthcare systems and public health infrastructure. The outbreak expanded for months before the international response reached the scale necessary to contain it.
One of the enduring lessons from West Africa is that Ebola is rarely defeated by sophisticated technology alone. Unlike respiratory viruses such as SARS-CoV-2, Ebola is not especially well suited to causing a global pandemic. People who become infected are often too sick to travel long distances, transmission requires close contact with the bodily fluids of someone who is ill, and asymptomatic transmission is not thought to play a major role. Yet Ebola possesses another dangerous characteristic, it can smolder undetected for weeks or months before exploding into view.
Containing an Ebola outbreak still depends on the same public health fundamentals that have worked for decades: rapidly identifying cases, diagnosing infection, tracing and monitoring contacts throughout the incubation period, providing safe isolation and treatment for those infected, and ensuring that those who die are buried safely and with dignity. None of these interventions are technologically complicated but all of them are resource intensive.
They require trained burial teams, diagnostic laboratories, treatment centers, personal protective equipment, surveillance systems, and enough frontline healthcare workers to sustain a response over many months. Perhaps most importantly, they require trust. Communities must believe that seeking care is safer than hiding illness, and that public health authorities are working with them rather than against them.
The response is now unfolding in earnest, led by the Congolese government with support from the World Health Organization, Africa CDC, and numerous international partners. There have already been important scientific milestones worth celebrating. Clinical trials evaluating therapeutic agents for infected patients are underway. A post-exposure prophylaxis trial has begun enrolling close contacts of confirmed cases. Meanwhile, a Phase 1 study in the United Kingdom is evaluating one of several candidate Bundibugyo Ebola virus vaccines, an important step toward developing a vaccine specifically targeting the virus responsible for this outbreak.
These accomplishments should give us reason for cautious optimism. Yet optimism is difficult to sustain when each epidemiological update shows that the outbreak continues to outpace the response and the case fatality rate remains approximately between 30-44% among confirmed cases.
So what has to change?
In speaking with colleagues working across agencies on the frontlines of this outbreak, one message comes through consistently; the need for resources remains enormous. There are simply not enough treatment centers to meet demand. Protective equipment remains limited in some settings. The logistics of working in conflict zones remain extraordinarily difficult. Some colleagues have also described how travel restrictions imposed by certain countries have complicated efforts to recruit experienced international responders.
The funding gap is equally sobering. In July, WHO Director-General Tedros Adhanom Ghebreyesus warned that the joint WHO–Africa CDC response plan faced a funding shortfall of more than $400 million even as the outbreak continued to accelerate.
The absence of a licensed vaccine targeting Bundibugyo ebolavirus presents another major challenge. An active scientific debate has emerged over whether the existing stockpiles of the licensed Zaire ebolavirus vaccine (Ervebo) should be deployed in carefully selected high-risk populations. Current WHO guidance concludes that the available evidence is insufficient to recommend its use outside controlled research settings because data supporting cross-protection against Bundibugyo virus remain limited and inconsistent. Others argue that findings from nonhuman primate studies and emerging immunologic data justify evaluating its use prospectively in carefully selected populations while measuring effectiveness. At present, neither position is supported by definitive clinical evidence, illustrating both the urgency of the situation and the limits of our current tools.
Perhaps most importantly, this outbreak must remain in the global conversation. In a world filled with competing humanitarian crises, attention is a finite resource. The longer an outbreak persists, the easier it becomes for those far removed from its immediate consequences to look away. But epidemics do not disappear simply because the headlines move on.
During the West African Ebola epidemic, one of the moments that crystallized the crisis for many Americans came when Thomas Eric Duncan, a Liberian national visiting family in Dallas, was diagnosed with Ebola after initially being sent home from an emergency department. He later died from the disease, and two nurses who cared for him became infected before ultimately recovering. One of those nurses, was transferred to Emory University Hospital for specialized care. Those events served as an important reminder that an outbreak anywhere is ultimately an outbreak everywhere.
But tragedies should not matter only when they reach our own doorstep. The Bundibugyo Ebola outbreak will not simply fade into the background. It will continue its relentless course until the response catches up with the virus. That requires more than passing headlines or expressions of concern. It requires sustained political commitment, adequate financing, scientific collaboration, and partnership with the communities at the center of this epidemic.
Ebola remains a formidable virus. But history has repeatedly shown that when the world commits the necessary resources and attention, outbreaks can be brought under control. Whether that happens this time depends less on the biology of the virus than on the choices we make in responding to it.
I am an infectious diseases physician and scientist writing at the intersection of medicine, global public health, society and justice. If this piece resonated with you consider sharing it and subscribing.
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