Countries: Democratic Republic of the Congo, Uganda Source: World Health Organization Please refer to the attached file. Event description Since our last update of 07 June 2026 (Situation Report #4), the Bundibugyo virus disease (BVD) outbreak situation in the Democratic Republic of the Congo has continued to evolve, with sustained transmission and increasing geographic spread being reported. In Uganda, the outbreak situation remains stable, with no new confirmed cases reported during the past week. Democratic Republic of the Congo In the Democratic Republic of the Congo, intense community transmission and geographic expansion continue to characterize the outbreak. Since 07 June 2026, a total of 258 new confirmed cases, including 91 new confirmed deaths, have been reported, representing a 60.0% increase in confirmed cases and a 90.1% increase in confirmed deaths reported. As of 14 June 2026, a cumulative total of 808 laboratory-confirmed cases, including 192 confirmed deaths [case fatality ratio (CFR) 23.8%], have been reported across the three affected provinces of Ituri, North Kivu, and South Kivu. The number of affected health zones has increased from 25 to 31, including 20 of 36 health zones in Ituri Province, 10 of 34 in North Kivu Province, and one of 34 in South Kivu Province. Newly reporting health zones include Tchomia, Kambala and Nia-Nia in Ituri Province and Mabalako, Masereka, and Vuhovi in North Kivu Province. However, the identification of cases in some of these newly reporting health zones may reflect previously undetected transmission rather than recent introduction of the virus. Epidemiological investigations indicate that transmission had likely been occurring in some of these areas for several weeks before the first cases were confirmed and reported. In contrast, health zones such as Nia-Nia have reported cases with symptom onset only within the past week, suggesting more recent spread of the outbreak into new areas. Ituri remains the most affected province to date, accounting for 738 confirmed cases (91.3%) and 153 confirmed deaths (79.7%) of all cumulative cases and deaths reported in the Democratic Republic of the Congo. Within the province, the highest cumulative burden continues to be observed in Bunia (215 cases), Mongbwalu (175 cases), Rwampara (152 cases), and Nyankunde (42 cases) health zones, which together account for 72.3% of all confirmed cases reported in the Democratic Republic of the Congo. While these health zones remain the main hotspots of transmission, additional cases have also been reported from several other health zones within and beyond Ituri Province, indicating an increasingly wide geographic distribution of affected areas. North Kivu has reported 62 confirmed cases to date (7.9% of all confirmed cases), including 58 cases reported within the last 21 days, indicating increasing transmission activity in the province. The highest cumulative numbers of cases have been reported from Katwa (25 cases), Butembo (19 cases), and Beni (14 cases) health zones, which are densely populated and highly connected commercial and urbanized areas. The continued rise in cases across these health zones suggests increasingly established transmission chains within North Kivu. Additional sporadic cases have also been reported from Goma, Kalunguta, Kyondo, Mabalako, Masereka, Oicha, and Vuhovi health zones, indicating a widening geographic distribution of affected areas within the province. North Kivu has also reported the highest case fatality ratio (56.7%), compared with 20.7% in Ituri and 33.3% in South Kivu. These differences should be interpreted cautiously and may reflect variations in healthcare access, timeliness of case detection and care-seeking, insecurity-related barriers affecting response operations, and differences in surveillance sensitivity and case ascertainment between affected provinces. Anecdotal reports further suggest that some patients may have travelled from Ituri to North Kivu while already severely ill, arriving during the later stages of disease progression. In contrast, South Kivu remains comparatively stable, with three confirmed cases, including one death, and no new confirmed cases reported since 26 May 2026. As of 14 June 2026, a total of 6120 contacts were under follow-up across the three affected provinces, of whom 3862 (63.1%) had reportedly been seen within the previous 24 hours. Follow-up coverage remains particularly suboptimal in Ituri Province (64.2%) and North Kivu Province (56.4%), posing continued challenges to interruption of transmission chains. Transmission continues to be amplified by insecurity, high population mobility, and operational challenges in affected areas. The outbreak hotspots remain affected by armed group activity, artisanal mining-related population movement, and porous cross-border mobility. Insecurity and community resistance continue to affect surveillance, safe and dignified burials, contact tracing, and healthcare delivery in several affected areas. Uganda No new confirmed cases have been reported in Uganda since the previous external situation report. As of 14 June 2026, Uganda has reported a cumulative total of 20 cases (19 confirmed and one probable), including three deaths (two confirmed and one probable), across Kampala and Wakiso districts within the Kampala Metropolitan Area. The outbreak remains epidemiologically linked to cross-border transmission from the Democratic Republic of the Congo. The last confirmed case was reportedly identified on 05 June 2026, suggesting a possible stabilization of transmission. Following case reclassification, the number of affected healthcare workers was revised from five to four. Males have accounted for 13 cases (65.0%) and females for seven cases (35.0%). Cases have been reported across several adult age groups, with the highest burden observed among persons aged 30 – 39 years (six cases, 30.0%) and those aged 50 – 59 years (six cases, 30.0%), followed by 20 – 29 years (four cases, 20.0%). Relatively few cases were reported among children and adolescents, with one case each reported among females aged 0 – 9 years and 10 – 19 years. Overall, the age and sex distribution suggests that transmission in Uganda has primarily affected working-age adults, particularly males, likely reflecting patterns of occupational exposure, mobility, caregiving responsibilities, and cross-border movement associated with the outbreak. A total of 826 contacts have been identified since the start of the outbreak. Of these, 350 remain under active followup as of 14 June 2026.