The virus spreads faster than surveillance can follow
WHO Director Tedros announced the highest-level risk assessment for DRC's Ebola epidemic, with 82 confirmed cases and 750 suspected cases amid ongoing armed conflict. The outbreak spreads across North and South Kivu provinces divided by M23 conflict lines, complicating health response efforts and creating chaos in affected areas.
- 82 confirmed cases, 7 confirmed deaths; 750 suspected cases, 177 suspected deaths in DRC
- Outbreak spans North and South Kivu provinces, divided by M23 conflict lines
- No approved vaccine or treatment exists for the Bundibugyo Ebola strain
- Uganda has recorded 2 confirmed cases and 1 death; situation remains stable
The WHO elevated the Ebola outbreak risk in the Democratic Republic of Congo to 'very high'—the maximum level—citing rapid spread across conflict-affected provinces, though global risk remains low.
On Friday, the World Health Organization moved the Ebola outbreak in the Democratic Republic of Congo into its highest threat category. Tedros Adhanom Ghebreyesus, the organization's director, announced the shift from "high" to "very high" risk at the national level—a designation that signals the most severe assessment the WHO can issue. The regional risk remained at high, and the global risk stayed low, but the speed of transmission within the DRC had become impossible to ignore.
The virus is spreading across North and South Kivu, two provinces separated by an active military front. On one side of that line stand Congolese government forces; on the other, the M23 armed group, backed by Rwanda, which has controlled significant territory since 2021. This geography of conflict has turned the health response into something closer to a logistical nightmare. In Ituri, where the outbreak began, scenes of chaos have unfolded as the WHO dispatches additional staff to a region where basic medical infrastructure is already fragile and security is uncertain.
The numbers tell a stark story. As of the announcement, 82 cases had been confirmed, with seven deaths confirmed as well. But those figures represent only the cases the health system had managed to identify and verify. The WHO was tracking roughly 750 suspected cases and 177 suspected deaths—a gap that speaks to how much of the outbreak remains invisible, either because people cannot reach clinics or because the virus is moving faster than surveillance can follow.
Uganda, which borders the DRC, had recorded two confirmed cases and one death, but the situation there remained stable for the moment. The virus itself—the Bundibugyo strain responsible for this outbreak—is a hemorrhagic fever that kills, but it is not as easily transmitted as COVID-19 or measles. It requires close contact with bodily fluids to spread. There is no approved vaccine for this particular strain, and no authorized treatment. The only tools available are the oldest ones: isolation, rapid case detection, and barrier precautions.
The WHO's decision to raise the alert level came as part of a broader conversation about pandemic risk that has begun to resurface globally. In recent months, hantavirus cases linked to a cruise ship, sustained increases in dengue across multiple regions, and now this Ebola escalation have prompted public health experts to ask whether the world is moving toward another pandemic. Two Colombian infectious disease specialists offered their assessment: the risk is real and persistent.
Catalina Herrera, an infectologist at the Universidad de La Sabana's medical school, noted that the threat of a new pandemic will always exist, particularly from respiratory viruses with high human-to-human transmission capacity. She pointed to the Spanish flu of the twentieth century and the recent COVID-19 emergency as reminders of what is possible. Travel, enclosed spaces, poor hygiene conditions, and declining mask use all create pathways for rapid spread. She also flagged a troubling trend: vaccination coverage has fallen in many parts of the world, eroding the collective immunity that protects populations from preventable diseases like measles.
Zulma Cucunubá, director of the Public Institute at Javeriana University, offered a more nuanced view. Not every virus that generates headlines has the capacity to become a pandemic, she explained. For that to happen, a pathogen needs efficient human-to-human transmission, the ability to spread internationally quickly, and a population with low immunity. Ebola, while devastating in localized outbreaks, depends on close contact with body fluids—a limitation that constrains its spread. Hantavirus remains primarily a disease that jumps from animals to humans, and only the Andes strain has shown limited human-to-human transmission, as occurred on the cruise ship, where containment measures worked. Both experts agreed that the real concern is the emergence of a new respiratory pathogen with high transmissibility. Deforestation, ecosystem disruption, and urban expansion are all increasing the likelihood of novel infectious diseases jumping from animals to humans. The path forward, they concluded, runs through stronger vaccination programs, basic hygiene, and robust public health capacity—and through international cooperation when the next threat arrives.
Notable Quotes
The epidemic of Ebola in the Democratic Republic of Congo is spreading rapidly— Tedros Adhanom Ghebreyesus, WHO Director
The risk of a new pandemic will always be latent, especially from respiratory viruses with high transmission capacity between people— Catalina Herrera, infectologist, Universidad de La Sabana
The Hearth Conversation Another angle on the story
Why did the WHO wait until now to raise the alert to maximum? The outbreak has been spreading for weeks.
The assessment reflects what they can confirm versus what they suspect. Early on, they had fewer verified cases. As the outbreak accelerated and they realized how many suspected cases were out there—750 suspected versus 82 confirmed—the picture became clearer. The conflict also made it harder to track what was actually happening on the ground.
The M23 conflict seems central to this. How much of the problem is the virus itself versus the war?
Both are inseparable now. The virus doesn't care about the front lines, but the front lines determine whether people can reach treatment, whether health workers can move safely, whether there's any functioning surveillance system at all. The chaos in Ituri isn't just medical chaos—it's the collapse of normal infrastructure under conflict.
You mentioned there's no vaccine for this strain. Is that unusual?
The Bundibugyo strain is less common than Zaire Ebola, which killed thousands in West Africa in 2014-2016. Vaccines exist for Zaire, but not for Bundibugyo. That's partly because outbreaks of this strain have been smaller and more localized until now. It's a reminder that preparedness is always playing catch-up.
The experts mentioned pandemic risk from respiratory viruses. Is Ebola not a pandemic threat?
Ebola is terrifying but contained by its own biology. It needs direct contact with blood or other fluids. A respiratory virus—something you catch by breathing the same air—that's the nightmare scenario. That's what could spread globally in weeks. Ebola spreads through fear and chaos, but not through the air.
What about the vaccination decline they mentioned? That seems like a separate crisis.
It is. Measles is resurging in places where it was nearly eliminated. That's not because the virus changed—it's because fewer children are vaccinated. If you lose herd immunity to preventable diseases, you've created vulnerability. And if a new pathogen emerges into that landscape, you've lost one of your best defenses.