Ebola Outbreak in Congo Spreads Into Territory Controlled by Islamic State

On May 15, 2026, the Democratic Republic of the Congo confirmed its 17th Ebola outbreak — this time in Ituri Province, one of the most conflict-ravaged regions on earth [1]. Within two days, the World Health Organization declared a public health emergency of international concern (PHEIC), an instrument reserved for the most severe cross-border health threats [2]. By June 1, the DRC Ministry of Health reported 344 confirmed cases and 60 confirmed deaths, with an additional 116 suspected cases still under investigation [3]. The virus had already crossed into Uganda, where 15 confirmed cases and one death were recorded [3].

The outbreak is caused by the Bundibugyo ebolavirus, first identified in Uganda in 2007 and far less studied than the Zaire strain responsible for most prior Ebola epidemics. There is no approved vaccine or treatment for Bundibugyo virus disease [2]. And the region where it is spreading — eastern Congo's Ituri and North Kivu provinces — is simultaneously a war zone where the Allied Democratic Forces (ADF), an Islamic State affiliate, and multiple other armed groups control or contest territory that health workers must enter to stop transmission.

The Outbreak in Numbers

As of June 1, confirmed cases have been reported across 22 health zones in three eastern provinces: Ituri (the epicenter, with 322 confirmed cases from 16 health zones), North Kivu (19 confirmed cases from seven health zones), and South Kivu (three cases from one health zone) [3][4]. Beyond confirmed cases, the DRC has reported more than 1,000 suspected cases and over 246 suspected deaths [5][6]. The gap between confirmed and suspected case counts is itself a signal of the outbreak's severity: laboratory capacity and sample transport are limited in a region with poor road infrastructure and active combat [4].

Source: WHO / CDC

Data as of Jun 2, 2026CSV

The confirmed case fatality rate stands at roughly 17%, lower than the roughly 66% seen in the 2018–2020 Kivu outbreak caused by the Zaire ebolavirus [3][7]. However, the Bundibugyo strain's characteristics remain poorly understood, and the case fatality rate among the much larger pool of suspected cases — where 246 deaths have occurred among roughly 1,000 suspected cases — suggests the real toll may be substantially higher [5].

Source: WHO / CDC

Data as of Jun 2, 2026CSV

Armed Groups and the Geography of Inaccessibility

Eastern Congo hosts over 100 armed groups [8]. Three in particular shape the Ebola response landscape:

The Allied Democratic Forces (ADF/IS-DRC): Originally a Ugandan Islamist rebel movement, the ADF has operated in North Kivu's Beni territory since the late 1990s. Under the leadership of Musa Baluku, the group formally pledged allegiance to the Islamic State in 2019 and was recognized as part of IS's Central Africa Province (IS-CAP) [9]. In recent years, the ADF has expanded northward from its strongholds in the Rwenzori mountains and Mwalika Valley into Ituri Province — the same province where the Ebola outbreak is centered [9][10]. The ADF controls a network of hidden camps housing approximately 2,000 people, operating as a proto-state with its own security service, prison, health clinics, and schools [9]. On May 24, ADF fighters killed 16 people in Beni, North Kivu — an area where confirmed Ebola cases have been recorded [5].

CODECO (Coopérative pour le Développement du Congo): An ethnic Lendu militia coalition active in Ituri, CODECO has been responsible for mass atrocities against civilian populations and controls pockets of territory in health zones where Ebola cases have been confirmed [4].

M23: Backed by Rwanda, M23 controls large sections of eastern Congo, including areas in North Kivu and South Kivu where Ebola cases have now appeared [11]. M23's territorial control complicates not only direct outbreak response but also the movement of supplies and personnel between health zones.

The WHO stated that the outbreak is spreading in an environment where "insecurity, attacks on health facilities and population movements" are making it "nearly impossible" to trace contacts and isolate cases [4]. WHO Director-General Tedros Adhanom Ghebreyesus, who visited the region on May 29, said: "We cannot build community trust or isolate the sick while bombs are falling" [4][12].

Nearly one million people are displaced in Ituri Province alone [11]. Nationally, the DRC has 5.2 million internally displaced persons — the fourth-highest figure in the world [13].

Source: UNHCR Population Data

Data as of Dec 31, 2025CSV

How Armed Groups Obstruct Outbreak Response

Armed groups interfere with Ebola containment through several specific mechanisms:

Physical access denial. Active fighting and armed group checkpoints restrict the movement of health workers, supplies, and laboratory samples. Roads in Ituri and North Kivu are already in poor condition; the presence of armed groups on key routes makes some health zones effectively unreachable [4][11].

Attacks on health facilities. In one week alone in late May, health centers were attacked three times: angry young men stormed a hospital treating Ebola patients in one incident; residents set fire to a tent for suspected Ebola cases in Mongbwalu; and a center in Rwampara was burned after relatives were barred from retrieving a body for traditional burial [14]. Three Red Cross volunteers died while handling infected bodies [6].

Disinformation. Social media conspiracy theories claim "the outbreak is a distraction, a hoax, a money-making scheme, or a pretext for some other nefarious agenda" [11]. During the 2018–2020 outbreak, armed groups and community leaders actively promoted the narrative that Ebola was fabricated by international actors to control local populations, and similar dynamics are present in 2026 [15].

Population displacement. Armed group attacks force civilians to flee, scattering potential contacts across wide areas and making systematic follow-up impossible. Approximately 3,600 contacts of infected individuals are currently being monitored in DRC, but the actual number of contacts is almost certainly higher in areas where tracing teams cannot operate [16].

Lessons from the 2018–2020 Kivu Outbreak

The current outbreak carries echoes of the 2018–2020 North Kivu Ebola epidemic, which produced 3,481 confirmed cases and 2,299 deaths over 21 months — the second-deadliest Ebola outbreak in history [7]. That crisis also unfolded in armed group-contested territory and offers both warnings and precedents.

During the Kivu outbreak, more than 300 attacks on Ebola health workers were recorded in 2019 alone, leaving six dead and 70 wounded [7][8]. Over 350 incidents disrupted response activities, with 80% directly targeting health structures or personnel [7]. The current outbreak has already seen multiple attacks on health facilities within its first three weeks.

The 2018–2020 response also generated what analysts called the "Ebola Business" — a war economy in which local actors had financial incentives to prolong the crisis [15]. WHO's approach during that outbreak drew criticism for co-opting personnel from the Agence Nationale de Renseignements (ANR), a state security agency known for human rights abuses, as "community liaisons," and for deploying uniformed security personnel alongside health workers, causing affected populations to associate the health response with state repression [15].

These mistakes have direct relevance to 2026. The International Peace Institute warned in late May that international responders "must not repeat the mistakes of 2018," urging that the current response be grounded in conflict analysis, maintain distance between security actors and health operations, and build on localized community structures rather than imposing external frameworks [15].

Key interventions that eventually slowed the 2018–2020 outbreak included the deployment of an experimental Ebola vaccine (Ervebo, effective against the Zaire strain), rigorous ring vaccination of contacts, community-negotiated burial practices, and the use of local responders on motorcycles rather than conspicuous vehicle convoys [15][7]. Critically, the Ervebo vaccine is ineffective against the Bundibugyo strain driving the current outbreak, removing one of the most powerful tools from the response toolkit [2].

The Funding Gap

The international funding response to the 2026 outbreak has been significant in absolute terms but modest relative to precedent. The Pandemic Fund Governing Board approved up to $220.6 million in grant financing to support outbreak response across affected and at-risk countries [17]. The European Union allocated €15 million in humanitarian funding and an additional €7.4 million for vaccine and treatment research [18]. The EU also launched a Humanitarian Air Bridge operation to deliver 100 tonnes of emergency supplies, including PPE, medicines, and operational equipment [18].

The World Bank committed $555 million through its DRC Nutrition/Health Project to protect maternal, newborn, and immunization services across more than 3,500 health facilities during the emergency [17].

The United States, historically the largest single-country funder of Ebola responses, has contributed $23 million in emergency funding — a fraction of the $2.4 billion allocated during the 2014–2016 West Africa outbreak and the roughly $604 million spent during the 2018–2020 Kivu response [19][20].

Source: KFF / NPR / World Bank

Data as of Jun 2, 2026CSV

The reduction reflects structural changes in US foreign health assistance. USAID was dismantled in 2025, and the US withdrew from the WHO [11][19]. Dennis Carroll, former director of USAID's Emerging Pandemic Threats program, said that "much of the support that was going into keeping these infrastructures in play disappeared" when USAID was dissolved [19]. The loss of institutional knowledge has been acute: USAID employed dozens of staff with outbreak surveillance and response expertise in DRC and Uganda, and the organizations they funded formed a detection network that no longer exists [20].

HHS sent nearly $33 million in foreign aid to the DRC in fiscal year 2024; that number fell to less than $10 million in 2025. USAID's spending collapsed from nearly $1.2 billion in fiscal 2024 to $67 million in the final three months of 2025 [20].

The Case Against and For International Intervention in IS-Held Territory

A serious argument exists that high-profile international humanitarian intervention in armed group-controlled territory can cause more harm than good. During the 2018–2020 outbreak, the visible presence of foreign responders — escorted by armed Congolese security forces — was used by armed groups as evidence that the Ebola response was a foreign military operation in disguise [15]. Attacks on local health workers increased in areas where international operations had the highest profile. The association between health workers and uniformed security personnel created a dynamic in which community members viewed Ebola treatment centers as extensions of a state that many in eastern Congo do not trust [15][8].

There is also evidence that armed groups used the international response as recruitment material. The ADF and other groups framed foreign intervention as confirmation of their narrative that the Congolese government and its international backers are hostile to local populations [10][15].

The counter-argument is straightforward: without intervention, Ebola transmission in armed group territory will continue unchecked, eventually spreading to areas where containment is also difficult. The Bundibugyo virus's 2-to-21-day incubation period means that infected individuals can cross borders or travel to population centers before becoming symptomatic [2][16]. The outbreak has already reached Kampala, Uganda's capital, through cross-border transmission [3]. Leaving armed group-controlled zones as reservoirs of active transmission creates ongoing regional risk regardless of the political dynamics within those zones.

The 2026 response appears to be attempting a middle path. WHO has emphasized community engagement through "known, trusted voices," particularly around burial practices, rather than deploying heavily secured international teams [11][12]. MSF has scaled up its response with a focus on localized care and has advocated for separating health operations from military operations [21].

Cross-Border Risk: Uganda, Rwanda, and South Sudan

The outbreak has already crossed into Uganda, with 15 confirmed cases including one death as of June 1 [3]. Uganda closed its border with the DRC, suspended all direct flights, and halted bus and ferry crossings for four weeks [22]. President Museveni postponed the annual Martyrs' Day pilgrimage scheduled for June 3 — an event that normally draws thousands of Congolese nationals [16].

Despite these measures, cross-border mobility continues at both formal and informal crossing points [22]. The International Organization for Migration warned that "response must cross borders faster than the virus" [23]. Ituri's role as a commercial and migratory hub, with active trade routes connecting it to Uganda and South Sudan, increases the risk of further regional spread [16].

Africa CDC has identified nine countries at elevated risk: Angola, Burundi, Central African Republic, Ethiopia, Kenya, Rwanda, South Sudan, Tanzania, and Zambia [16]. Rwanda has also closed its border with Congo.

The Bundibugyo virus has an incubation period of 2 to 21 days [2]. Given that confirmed cases are already present in Kampala and that informal border crossings continue, the window for preventing sustained community transmission in neighboring countries is narrow. During the 2018–2020 outbreak, a single case crossed into Uganda from DRC and was contained, but that response benefited from the Ervebo vaccine — which does not work against the Bundibugyo strain [7].

Decision-Making Authority and Institutional Friction

Multiple institutions hold authority over different aspects of the response. The DRC Ministry of Public Health, Hygiene and Social Welfare leads the national response, with the WHO providing technical coordination after declaring the PHEIC [2]. The DRC government's joint statement with WHO on May 31 outlined a response strategy relying on "supportive care, early case detection, stringent infection prevention and control protocols, rigorous contact tracing, safe burial practices, and deep community engagement" [1].

The Pandemic Fund — housed at the World Bank — approved $220.6 million, but these funds flow through implementing agencies and country-level systems, meaning disbursement lags behind approval [17]. The EU's €15 million is channeled partly through WHO and partly through direct humanitarian operations [18].

The US position is constrained by its withdrawal from WHO and the dissolution of USAID. The CDC has mobilized technical assistance through its country offices and partners, providing support for disease tracking, laboratory testing, virus sequencing, and border health screening [24]. But the scale of CDC's engagement is a fraction of what it was during previous outbreaks, and the institutional infrastructure that once allowed rapid US response deployment no longer exists [19][20].

MONUSCO, the UN peacekeeping mission in Congo, has a mandate that includes supporting humanitarian operations, but its relationship with the Ebola response is fraught. During the 2018–2020 outbreak, WHO initially failed to request MONUSCO's conflict analysis before deploying response teams, a mistake that contributed to the securitization of the health response [15]. Whether MONUSCO's analytical capacity is being used more effectively in 2026 remains unclear.

No entity has publicly refused or delayed authorization for deploying response teams in the current outbreak. However, the practical reality is that authorization is irrelevant in territory where armed groups — not the Congolese government or UN — control access. In ADF-controlled areas, the decision to allow or deny health worker entry rests with insurgent commanders, not with any ministry or multilateral body [9][10].

What Comes Next

The 2026 Ebola outbreak is still in its early weeks, but the trajectory is concerning. More than 1,000 suspected cases have been reported, confirmed cases are distributed across 22 health zones in three provinces, the virus has crossed one international border, and the outbreak is expanding in zones where armed groups control access [3][5][6]. The Bundibugyo strain's lack of approved vaccines or treatments removes tools that were central to ending the 2018–2020 outbreak [2].

Nearly 10 million people in four eastern provinces face acute hunger, and 26.5 million nationally are experiencing high food insecurity — conditions that compound the health emergency and undermine the response [4]. Congo ranks among the world's five poorest countries [6].

The question facing the international community is whether a response calibrated to avoid the mistakes of 2018–2020 — community-led, conflict-sensitive, and locally embedded — can scale fast enough to outpace a virus spreading through territory where no outside authority is welcome.