CDC Raises Ebola Response to Its Highest Level as Cases Top 1,100
The CDC has moved to its highest response level as the Congo-Uganda Ebola outbreak becomes the third largest on record. For US readers, the risk stays low.
The U.S. Centers for Disease Control and Prevention has raised its response to the Ebola outbreak in Central Africa to a Level 1 activation, the highest tier the agency uses, as confirmed cases pushed past 1,100 across the Democratic Republic of the Congo and Uganda.
The move, announced on a June 26 briefing call, signals how serious the agency considers an epidemic that was declared barely six weeks ago. This remains a growing and highly concerning Ebola outbreak,
said Dr. Satish Pillai, who is leading the CDC's response. He called it now the second largest Ebola outbreak ever recorded in DRC and the third largest Ebola outbreak documented globally.
A Level 1 activation, Pillai explained, is an internal signal that lets the agency pull staff and resources from across the CDC into the response.
For readers far from the outbreak, the most important number is a calmer one: the risk inside the United States remains low. The virus spreads through direct contact with the bodily fluids of an infected person, not through the air or casual contact. A single case reached France this month, in a humanitarian medical worker who fell ill after returning from the DRC, reported his symptoms on arrival and was isolated immediately. Officials have found no sign of onward spread from that case, which Daybreak Wire covered last week.
What the numbers actually show
The toll is concentrated where the outbreak began. As of late June the DRC had logged 1,155 confirmed cases and 304 deaths, with 20 confirmed cases and two deaths in neighboring Uganda, according to figures from the Africa CDC. This is the Bundibugyo strain of the virus, one of four orthoebolaviruses that cause Ebola in people. There is no licensed vaccine for it, and care is supportive. Historically, Bundibugyo outbreaks have killed between 25% and 50% of those infected, the CDC notes.
The single statistic that worries responders most is not the case count but the share of contacts they can actually track. Health teams need to find and monitor about 80% of the people each patient has been in contact with to bring an outbreak under control. In the DRC, that figure is closer to 30%. Africa CDC Director-General Jean Kaseya warned that if contact tracing does not improve, for sure it will be the largest Ebola outbreak ever.
That gap is why the U.S. escalation is paired with a regional one. The Africa CDC has convened a three-day meeting of the DRC, Uganda and 11 other high-risk African Union member states, together with the World Health Organization, to compare preparedness and tighten coordination across borders. The WHO declared the epidemic a public health emergency of international concern shortly after it was confirmed in mid-May.
On the American side, the practical work is preparation rather than alarm. The CDC says it has about 100 staff deployed at home and abroad, including 24 based permanently in the DRC and nearly 100 in Uganda, and is drawing on more than $100 million from its infectious-disease rapid-response fund. It has briefed thousands of clinicians and health departments on how to spot and isolate a suspected case. Dr. Kevin Chatham-Stephens, the deputy incident manager for domestic preparedness, pointed to the system's track record, including a Lassa fever case handled in 2024 and readiness work during last year's DRC outbreak.
The honest summary, for anyone weighing whether to worry, is two-sided. The outbreak in the DRC and Uganda is serious, growing and not yet contained, and the people closest to it face real danger. The threat to someone reading this in the United States, by every measure the agencies have published, is small. The number that will decide which way the larger story turns is the one in the chart above, and right now it is moving too slowly.
