The deadliest Ebola outbreak on record has claimed more than 1,500 lives in eastern Congo, with the number of fatalities increasing by 50% in approximately one week. As of Tuesday, the outbreak, declared on May 15, had recorded 3,442 cases and 1,521 deaths, according to official government data.
The outbreak is primarily linked to the Bundibugyo virus, a strain for which there are no approved vaccines or treatments. Currently, 797 patients are in isolation or hospitalized, while 615 have recovered. Contact tracing efforts are falling short of the 95% target deemed necessary to interrupt transmission, with only about 78% of known contacts being monitored nationwide.
Compounding the challenges are widespread displacement due to armed conflict and illegal mining in the region, which hinder efforts to track individuals who have come into contact with infected persons. While the outbreak is largely concentrated in the remote Ituri province, accounting for nearly 90% of cases, infections have also been confirmed in five other provinces, including the major city of Kisangani.
Neighboring Uganda declared itself free of Ebola on Tuesday after its last patient was discharged in mid-June. Ebola, a rare but highly contagious disease transmitted through bodily fluids, causes severe and often fatal illness. The current outbreak has surpassed previous ones in its speed and mortality rate; the 2014-2016 outbreak, which saw over 11,000 deaths from 28,000 cases, took about eight months to reach 1,000 deaths.
The World Health Organization assesses the global risk of spread as low due to Ebola's transmission method via direct contact with bodily fluids, making it less likely to spread than airborne viruses. Cases outside affected regions have been quickly contained. However, the WHO maintains that the risk of further spread within Congo remains "very high."
Public concern has been amplified by the inaccessibility of many affected communities and the withdrawal of some aid groups due to safety concerns stemming from attacks by angry residents and rebels. Misinformation questioning the virus's existence and restrictions on traditional funerals have fueled unrest and led to assaults on health facilities. International partners, including the WHO and Africa CDC, temporarily withdrew from the Nyakunde health zone after an attack on a hospital and treatment center on July 15. This withdrawal has disrupted surveillance, contact tracing, and supply chains. Officials report that security has since stabilized and are urging partners to return, with some teams potentially redeploying as early as next week.