The Democratic Republic of Congo’s worsening Ebola outbreak is showing no signs of slowing down, with leading researchers warning that neighboring South Sudan now faces a nearly 70 percent probability of importing cases as the deadly virus continues its advance across Central and East Africa.
A new study published in the prestigious medical journal The Lancet has raised alarm among global health experts after predicting that the ongoing outbreak, centered in the eastern Congolese province of Ituri, has a 69.3 percent chance of spreading into South Sudan.
The findings come as the World Health Organization (WHO) admits that the epidemic is continuing to outpace response efforts on the ground.
The outbreak, caused by the rare Bundibugyo strain of the Ebola virus, has already crossed one international border, with Uganda confirming infections linked to the Congolese epidemic.
Health officials fear that porous frontiers, frequent population movement, and limited disease surveillance could allow the virus to spread further into vulnerable neighboring nations.
According to the latest figures released by authorities in Kinshasa, the outbreak has reached at least 1,118 confirmed cases and claimed 291 lives.
The WHO has described the situation as one of the most serious Ebola emergencies in recent years, particularly because of the challenges associated with detecting and controlling the Bundibugyo variant.
Researchers who developed the Lancet model examined several possible outbreak trajectories and concluded that current infection trends most closely match a medium-severity scenario.
Under this projection, total cases could rise dramatically to around 8,200 by September if transmission is not brought under control.
The study’s authors noted that the risk of international spread is no longer theoretical. They emphasized that Uganda has already recorded confirmed infections and fatalities linked to the outbreak, demonstrating how quickly the virus can move beyond the DRC’s borders.
While South Sudan faces the greatest danger, the researchers estimated considerably lower probabilities for other neighboring countries.
Rwanda was assessed as having an 8.6 percent chance of receiving imported cases, while Burundi’s risk was estimated at just 2 percent.
Nevertheless, health authorities across the region are being urged to strengthen border screening, disease surveillance, and emergency preparedness plans.
South Sudan’s vulnerability is of particular concern to global health agencies. Decades of conflict, political instability, and underinvestment have left the country with one of the world’s weakest healthcare systems.
Large areas of the country lack adequate medical infrastructure, trained healthcare personnel, and laboratory capacity needed to rapidly identify and isolate Ebola cases.
Public health experts warn that even a small number of imported infections could overwhelm local health services and trigger wider community transmission if not detected quickly.
The outbreak has also drawn international attention following France’s confirmation this week of its first imported Ebola case connected to the current epidemic.
French authorities reported that a doctor who had been treating patients in the Democratic Republic of Congo returned home infected with the virus.
The physician was immediately transferred to a specialized treatment facility and remains in stable condition.
French health officials stressed that the risk to the wider public remains low because the patient was quickly identified and isolated.
The case marked the first confirmed Ebola infection detected outside Africa during the current outbreak and served as a reminder of how interconnected the world has become.
Modern air travel means infectious diseases can cross continents within hours, making rapid detection and international cooperation essential.
Health experts believe the virus may have been circulating undetected in northeastern Congo for more than six weeks before authorities officially declared an outbreak in mid-May. This delay significantly complicated containment efforts.
One major challenge was the lack of readily available testing kits capable of identifying the Bundibugyo strain.
As a result, healthcare workers initially struggled to distinguish Ebola infections from other diseases common in the region, including malaria, typhoid, and severe bacterial infections.
Adding to the difficulties, doctors have reported that some of the classic symptoms commonly associated with Ebola outbreaks have appeared less frequently.
Unlike the more common Zaire strain, which often produces dramatic hemorrhagic symptoms, the Bundibugyo variant appears to cause less visible bleeding in many patients, increasing the likelihood of misdiagnosis during the early stages of illness.
The outbreak is also unfolding against the backdrop of long-running insecurity in eastern Congo. Armed groups remain active across large parts of Ituri and neighboring provinces, making it difficult for health workers to access affected communities and conduct contact tracing operations.
WHO Director-General Tedros Adhanom Ghebreyesus recently acknowledged the enormous challenges facing response teams.
“Despite the good progress we have made, we still face major challenges, and the outbreak is continuing to outpace the response,” he said.
WHO emergency officials have reported repeated security incidents involving healthcare personnel. Abdirahman Mahamud, one of the organization’s senior Ebola response coordinators, revealed that health workers continue to face threats ranging from abduction attempts to violent attacks while carrying out lifesaving work.
Such incidents have disrupted vaccination campaigns, delayed investigations of suspected cases, and hindered efforts to educate communities about prevention measures.
As the epidemic expands, international agencies are calling for increased funding, stronger regional coordination, and accelerated deployment of medical resources. Experts argue that preparations in South Sudan and other neighboring countries must begin immediately rather than waiting for the first imported case to appear.
With case numbers continuing to rise and projections indicating thousands more infections in the coming months, the battle against Ebola in Central Africa has entered a critical phase.
The success or failure of containment efforts in the weeks ahead may determine whether the outbreak remains a regional crisis or evolves into a broader international public health emergency.
