What the chart shows about how rapidly Ebola is spreading in Congo

Cases rising faster than before
In the first five months of the outbreak, the World Health Organization reported 9,415 confirmed cases and 4,536 deaths in the Democratic Republic of Congo. The virus has remained relatively contained within the country, while neighboring Uganda and Kenya have recorded 20 and eight confirmed cases, respectively.
At about 150 days after the outbreaks were declared, 8,978 cases had been reported in 2026, compared with 2,599 during the 2014 West African epidemic. The current crisis has not reached the scale of that earlier outbreak, which killed more than 11,000 people, but its spread has been faster.
A strain without a vaccine
The current outbreak involves Bundibugyo, a rare Ebola-related strain that differs from the Zaire virus behind earlier epidemics. Treatments and vaccines developed for Zaire do not work against Bundibugyo, and no vaccine for this strain is available.
The 2026 outbreak is the third linked to Bundibugyo. Uganda had a smaller outbreak in 2007, and eastern Congo recorded several cases in 2012; both were contained within months, with help from the Ministry of Health, WHO, USAID and humanitarian organizations.
Delayed detection and reduced aid
The article says USAID cuts reduced resources for disease surveillance, testing, health workers and protective equipment. A WHO situation report in May described a four-week gap between symptoms in the presumed first case and laboratory confirmation of the outbreak.
In August, the United States added $242 million to its original $23 million pledge from May. The additional funding was intended to address at least part of the shortfall.
Conflict complicates the response
Conflict in eastern provinces, including Ituri, has weakened public infrastructure and healthcare. Violence has overwhelmed hospitals and displaced millions, while mistrust of health authorities has made the public health response more difficult.
Last year, nearly 25 percent of Congolese people faced food insecurity, and 4.5 million children were clinically malnourished. Emergency vaccine trials are underway, but the article says it is difficult to predict when the outbreak will be brought under control.
Key points
- Congo reported 9,415 confirmed cases and 4,536 deaths in the outbreak’s first five months.
- At around 150 days, the 2026 outbreak had 8,978 reported cases, versus 2,599 in 2014.
- Bundibugyo has no vaccine, and the current outbreak is the strain’s third recorded outbreak.
- A WHO report cited a four-week gap before laboratory confirmation of the outbreak.