WHO Warns Ebola Outbreak Started Months Ago as Suspected Cases Surge to 600
- Post By Emmie
- May 21, 2026
The World Health Organization (WHO) has revealed that the expanding Ebola outbreak in the Democratic Republic of Congo (DRC) and Uganda likely began spreading silently "a couple of months ago."
Speaking at a press briefing in Geneva, WHO Director-General Dr. Tedros Adhanom Ghebreyesus announced a sharp rise in numbers, with 600 suspected cases and 139 suspected deaths now recorded. Health authorities expect these figures to climb significantly due to the massive delay in uncovering the virus's presence.
While the WHO recently designated the crisis a public health emergency of international concern, Dr. Tedros clarified that its emergency committee agrees the situation is "not a pandemic emergency." He noted, "WHO assesses the risk of the epidemic as high at the national and regional levels and low at the global level."
The current epidemic marks the DRC's 17th Ebola outbreak, but it is uniquely perilous because it is driven by the rare Bundibugyo species. Unlike the Zaire strain that dominates most of the country’s history with the disease, the Bundibugyo variant has only caused two recorded outbreaks in the past, killing roughly a third of those it infects.
Compounding the crisis, there are currently no approved clinical drugs or vaccines that specifically target the Bundibugyo strain. Initial symptoms heavily mimic common local illnesses like malaria and typhoid, which heavily contributed to the delayed tracking.
To combat this, the DRC is expecting shipments of an experimental vaccine developed by Oxford researchers. Jean-Jacques Muyembe, a virus expert at the National Institute of Biomedical Research, stated:
"We will administer the vaccine and see who develops the disease."
Health officials have confirmed 51 cases across the DRC's eastern Ituri and North Kivu provinces, alongside two cases in Uganda's capital, Kampala. Both Ugandan patients had traveled from the DRC, and one has since died.
The epicenter remains the high-traffic gold-mining hub of Mongwalu and Ituri's provincial capital, Bunia. DRC Health Minister Samuel Roger Kamba explained that a nurse developed symptoms and died in Bunia on April 24th, and her body was subsequently returned to the populous mining zone of Mongwalu. "That caused the Ebola outbreak to escalate," Kamba noted.
Dr. Anne Ancia, head of the WHO team in the DRC, admitted that investigators still have not successfully identified "patient zero." Dr. Tedros raised several core factors driving the rapid cross-border transmission:
- Healthcare Transmission: Multiple deaths have occurred among frontline medical staff.
- Mass Migration: High population mobility is actively carrying the virus into new urban areas.
- Geopolitical Conflict: Eastern DRC is severely impacted by violent rebel groups, which heavily restricts humanitarian access.
Responding to criticism from the U.S. that the UN health agency was "a little late" in recognizing the outbreak, Dr. Tedros dismissed the comments as a lack of understanding. "We should appreciate what was done so fast in a highly complex setting," he stated.
Funding the ground operations remains a critical roadblock. The WHO has released $3.9 million from its emergency contingency fund, and the Africa CDC has mobilized $2 million. Amid deep anxiety over the Trump administration's sweeping foreign aid cuts—which Dr. Ancia warned have had "a marked detrimental effect on humanitarian actors"—the U.S. State Department announced it has independently deployed $13 million to support the region.
The WHO strongly advises neighboring nations to boost surveillance and establish emergency border screening, but emphasizes that countries should not enforce total border closures, as fear-driven restrictions inevitably lead to unmonitored, informal crossings.