Ebola outbreak spreads to 6th province in DR Congo, cases cross 4,600
Synopsis
Key Takeaways
The Ebola outbreak in the Democratic Republic of the Congo (DRC) has spread to a sixth province, with confirmed cases climbing to 4,665 as of 14 August, the country's public health authorities announced. The expansion marks a significant escalation in one of the DRC's most serious Ebola emergencies in recent years.
New Province Affected
The Buta health zone in the northern province of Bas-Uele has been added to the list of affected areas, bringing the total number of affected health zones across the country to 54. The outbreak now spans six provinces — Bas-Uele, Haut-Uele, Ituri, North Kivu, South Kivu, and Tshopo — with the northeastern province of Ituri remaining the primary epicentre.
Death Toll and Case Fatality Rate
A total of 2,184 deaths have been recorded among confirmed cases, placing the overall case fatality rate at 46.8%. Meanwhile, 965 people have recovered since the outbreak was declared. The DRC government first declared this Ebola outbreak — caused by the Bundibugyo ebolavirus — on 15 May.
Vaccine Push Amid Rapid Escalation
The Africa Centres for Disease Control and Prevention (Africa CDC) has called for urgent support to deploy the Ervebo vaccine to help contain what it described as a 'rapidly escalating' outbreak. Africa CDC Director-General Jean Kaseya, speaking during an online briefing on Thursday, called the DRC government's decision to deploy the vaccine 'a big step' in the ongoing response.
The DRC has already submitted a request for 100,000 doses of the Ervebo vaccine to the International Coordinating Group on Vaccine Provision. Kaseya warned that the current emergency 'risks becoming the deadliest the country has faced, and we cannot allow that trajectory to continue.' He said the requested doses would support clinical trials, vaccination of front-line responders, and those in urgent need.
Why the Bundibugyo Strain Complicates the Response
The Bundibugyo ebolavirus is a rare strain for which no licensed vaccines or targeted medical countermeasures currently exist. This absence of approved treatments is a key driver of the disease's rapid spread across parts of the DRC. The Ervebo vaccine — a World Health Organisation (WHO) pre-qualified, single-dose vaccine — was developed for the Zaire Ebola virus strain, which is distinct from Bundibugyo.
Kaseya highlighted Ervebo's potential for cross-protection in the current emergency context, arguing that its deployment is a strategic approach to reduce severe illness and deaths while simultaneously generating evidence needed to guide the broader response. Notably, this is the first time Ervebo is being considered for deployment against the Bundibugyo strain in a large-scale emergency setting.
What Comes Next
With cases spreading across six provinces and a fatality rate approaching 47%, the international health community faces mounting pressure to accelerate both vaccine supply and containment measures. The DRC's request for 100,000 vaccine doses is pending approval from the International Coordinating Group, and the outcome will be closely watched by global health authorities tracking the outbreak's trajectory.