WHO Warns of 'Catastrophic Collision' of Disease and Conflict as BDBV Outbreak Outpaces Response

On May 27, 2026, WHO issued a stark warning of a 'catastrophic collision of disease and conflict' in eastern DRC, as the Bundibugyo virus (BDBV) outbreak continued to outpace the response capacity of the international health system. WHO stated that insecurity, persistent attacks on health facilities, and mass population movements were making contact tracing 'nearly impossible' across large swaths of the affected zone. With at least 25 suspected BDBV patients unaccounted for following the Mongbwalu ETU attacks (May 23–26), 23% of the outbreak zone inaccessible to health teams, and the total suspected caseload at 906, WHO characterized the situation as a dual emergency: a pathogen with no approved specific vaccine or therapeutic, operating within one of the most protracted conflict environments in the world. The warning came 10 days after the May 17 PHEIC declaration and reflected growing consensus among WHO, MSF, and UN agencies that the response — while faster and better-resourced than the 2018–2020 Kivu outbreak at the equivalent stage — was being fundamentally constrained by the security environment in Ituri Province. WHO called for immediate international political engagement with the armed groups operating in Djugu and Irumu territories, framing the security problem as inseparable from the public health problem. The UN Security Council was briefed on the situation. MONUSCO confirmed it was providing helicopter transport and armed escorts for response teams in the most dangerous health zones, but acknowledged that FARDC and MONUSCO combined lacked the capacity to protect all facilities simultaneously.