The latest figures marked an increase from 933 confirmed cases and 245 deaths reported a day earlier, according to government data.

Growing concern has centered on Kigonze camp in Bunia, the epicenter of the outbreak, where at least 30 people have died since early May. Camp officials and humanitarian workers said the death rate was unprecedented and raised fears that Ebola may be spreading rapidly among displaced populations living in overcrowded and unsanitary conditions.

Kigonze hosts more than 15,000 residents and is located in Ituri province, which accounts for more than 90 percent of the country’s confirmed Ebola infections. Eastern Congo is home to more than five million displaced people, many of whom have fled years of armed conflict and insecurity.

Camp spokesperson Desire Grodya Bapi told Reuters that such a concentration of deaths had never previously been recorded at the site, which normally reports only a handful of deaths each month. Residents and aid workers described victims suffering symptoms commonly associated with Ebola, including fever, headaches and vomiting.

Health officials faced additional challenges because many families initially refused testing of both living patients and deceased relatives. Aid workers said resistance to medical intervention delayed efforts to determine the exact causes of death and complicated disease surveillance.

According to camp officials and humanitarian sources, samples collected from several victims tested positive for Ebola. Footage verified by Reuters showed health teams wearing protective suits disinfecting bodies and preparing coffins while grieving relatives gathered nearby.

The outbreak was officially declared on May 15, although officials said infections and deaths had begun earlier in the month.

Humanitarian organizations warned that deteriorating sanitation infrastructure and funding shortfalls may be contributing to the outbreak’s severity. Several aid agencies said reductions in international support for water, sanitation and hygiene programs have left vulnerable communities more exposed to infectious diseases.

United Nations data indicate that funding for water and sanitation services in Congo fell sharply between 2024 and 2025, while this year’s humanitarian appeal remains significantly underfunded. Aid groups said projects providing clean water access, handwashing facilities and public toilets have been scaled back or discontinued in several Ebola-affected regions.

Conditions inside Kigonze camp remain particularly challenging. Families often share cramped shelters, sanitation facilities are insufficient, and overflowing latrines have become a persistent problem, according to camp representatives and aid workers.

Humanitarian agencies noted that the United States has historically been one of the largest contributors to water and sanitation programs in Congo. However, several organizations reported that U.S.-funded projects serving displaced populations in Ebola-affected provinces have been reduced following recent funding cuts.

The worsening outbreak has heightened concerns among health officials that delayed testing, population displacement and inadequate sanitation could accelerate transmission in one of the world’s most vulnerable humanitarian settings.

Congo said on Thursday that Ebola had reached three new health zones, bringing the outbreak total to 676 confirmed cases and 136 deaths. The outbreak has also crossed into neighboring Uganda.

“There are still many blind spots in some areas that are high risk,” Olivier le Polain, a WHO epidemiologist based in Beni, eastern Congo, said.

Le Polain said surveillance systems needed to be strengthened in affected regions, adding that a shortage of isolation beds remained a major challenge. Only 250 beds were available across the three affected provinces, he said.

The outbreak involves the rare Bundibugyo strain of Ebola, for which there is currently no approved treatment or vaccine. Health workers said the disease went undetected for weeks, leaving responders struggling to contain its spread.

The WHO has not yet issued projections on the possible scale of the outbreak, Le Polain said.

The warning came after the US Centers for Disease Control and Prevention said the outbreak could potentially reach levels comparable to the 2014-2016 Ebola epidemic in West Africa, which killed more than 11,000 people.

Health officials said efforts to control the current outbreak are being complicated by limited medical resources and challenges in identifying cases early.

Nearly 600 children with suspected or confirmed measles have died since March, while hospitals across the country are struggling to cope with hundreds of new admissions each day. Medical facilities remain under severe pressure as doctors attempt to isolate infected patients and prevent further transmission.

Health experts fear large-scale population movement during the Eid holidays could accelerate the spread of the highly contagious disease, particularly in rural areas with limited access to healthcare services.

The outbreak has overwhelmed pediatric wards in several hospitals, prompting renewed calls for expanded vaccination efforts and stronger public health measures to contain the crisis.

Officials said the virus likely circulated undetected for weeks because initial testing focused on more common Ebola strains. No approved vaccine currently exists for the Bundibugyo variant, with WHO estimating any targeted vaccine could take six to nine months to develop.

The outbreak is unfolding in conflict-hit areas of eastern Congo, where insecurity, population displacement and weak health infrastructure are complicating containment efforts.

The WHO said the outbreak did not yet meet the threshold for a pandemic emergency but warned that countries bordering Congo faced a heightened risk of further spread as infections expanded across eastern regions and new cases emerged in Uganda’s capital, Kampala.

According to the agency, 80 suspected deaths, eight laboratory-confirmed cases and 246 suspected infections had been reported as of Saturday in Congo’s Ituri province, particularly in the health zones of Bunia, Rwampara and Mongbwalu.

The Congolese health ministry had earlier confirmed that at least 80 people had died in the outbreak, which health officials believe may be significantly larger than currently documented because of high positivity rates in early testing and increasing numbers of suspected infections.

The outbreak involves the Bundibugyo strain of Ebola virus disease, a rarer variant for which no approved vaccines or targeted therapeutics currently exist, unlike the more common Ebola-Zaire strain that has been the focus of previous immunization campaigns in Central Africa.

The WHO described the situation as “extraordinary,” warning that international transmission had already been documented.

In Kampala, two unrelated laboratory-confirmed Ebola cases, including one death, were identified on Friday and Saturday in travelers arriving from Congo, according to the agency. A confirmed case was also detected in Kinshasa involving a traveler returning from Ituri province.

The WHO urged governments to activate national emergency-response systems, intensify border screening and strengthen surveillance along internal transportation routes to contain further spread.
The agency also advised that confirmed Ebola patients and close contacts should avoid international travel except for medical evacuation purposes.

It recommended immediate isolation of confirmed cases, daily monitoring of contacts and restrictions on domestic travel for exposed individuals until 21 days after potential infection.

At the same time, the WHO cautioned governments against shutting borders or imposing sweeping trade restrictions, warning that such measures could push movement across unofficial crossings beyond the reach of health monitoring systems.

The outbreak poses an additional challenge for regional health systems already strained by conflict, population displacement and limited medical infrastructure in eastern Congo, where previous Ebola epidemics have repeatedly tested emergency response capacities.