Since the last Disease Outbreak News was published on 8 June 2026, the number of confirmed cases and deaths have increased rapidly in the Democratic Republic of the Congo. In total, 695 confirmed cases; 676 from the Democratic Republic of the Congo and 19 from Uganda; and 138 deaths including two from Uganda, have been reported from both countries, while at least 37 people have recovered from the disease.
Figure 1. Distribution of confirmed cases of Bundibugyo virus disease in the Democratic Republic of the Congo, as of 10 June; and Uganda, as of 11 June 
Democratic Republic of the Congo
Since 8 June, an additional 161 confirmed cases, including 45 confirmed deaths, have been reported from the Democratic Republic of the Congo. The increase is in part due to the scale up of testing and diagnostic capacities, enabling testing of the backlog of previously collected samples. As of 10 June 2026, a total of 676 confirmed cases including 136 deaths (CFR 20.1%) have been reported from the Democratic Republic of Congo. The reported CFR is likely an underestimation, as many deaths that occurred before the outbreak declaration remain under investigation. So far, 32 patients have recovered. Cases have been reported from 29 health zones (HZ) from Ituri (19/36 HZ), North Kivu (9/35 HZ) and South Kivu provinces (1/34 HZ) [1]. Sixteen confirmed cases have been reported among health and care workers to date.
The outbreak remains concentrated in Ituri Province, which accounts for 93% (629) of the confirmed cases with a CFR of 17.3% (109/629). The highest number of confirmed cases in Ituri Province are reported from Bunia (185 cases), Rwampara (137 cases), Mongbwalu (132 cases), and Nyankunde (33 cases) health zones. While the epicentre remains Ituri, there has been significant geographic expansion of health zones with confirmed cases since 8 June, with confirmed cases in additional four health zone as of 10 June. Of the total confirmed cases, 94 are awaiting distribution by HZ.
As of 10 June, 5768 contacts have been identified and are under follow-up across Ituri (4703), North Kivu (841), and South Kivu (224) provinces. Of these, 4141 contacts have been followed up, corresponding to follow-up rates of 71.4% in Ituri, 71% in North Kivu, and 83.5% in South Kivu.
The outbreak is unfolding in a complex humanitarian and conflict-affected environment, characterized by highly mobile and often displaced populations. These dynamics, combined with increasing security-related incidents affecting health facilities, have posed additional operational challenges in affected provinces, such as constrained access for response teams, disrupted surveillance and response activities, and heightened risk of undetected transmission. These conditions underscore the need for response efforts to be led by local leaders and anchored in communities.
Figure 2: Number of confirmed cases (n = 676) in the Democratic Republic of the Congo, by date of reporting as of 10 June 2026
