Ebola outbreak in the Democratic Republic of the Congo and Uganda: Current assessment of the epidemic situation
Colorized transmission electron micrograph of an Ebola virus virion.
The World Health Organization (WHO) has declared the current Ebola outbreak in the Democratic Republic of the Congo (DR Congo) and Uganda a public health emergency of international concern. The outbreak is caused by the rare Bundibugyo virus, a member of the Ebolavirus genus, for which neither an approved vaccine nor a specific treatment is currently available. International health authorities are monitoring the situation closely. According to assessments by the European Centre for Disease Prevention and Control (ECDC) and the Robert Koch Institute (RKI), there is currently only a very low risk to the population in Germany.
As stated by the WHO, the first cases were confirmed in Ituri Province in the eastern part of the Democratic Republic of the Congo. There are now also cases in Uganda linked to travel from the affected area. Efforts to contain the outbreak are currently focused on rapid testing, contact tracing, isolating infected individuals, and protecting healthcare workers.
According to assessments by the RKI and the ECDC, transmission of the Ebola virus occurs exclusively through direct contact with bodily fluids of infected individuals or with contaminated materials. Transmission via the air does not occur. The risk to the general population in Europe is therefore currently considered very low.
As of May 19, according to DZIF scientist Prof. César Muñoz-Fontela of the Bernhard Nocht Institute for Tropical Medicine, there were 536 suspected cases, 34 confirmed cases, and 134 deaths. The outbreak is affecting conflict zones in the Democratic Republic of the Congo, particularly in the provinces of Ituri and Goma, with at least three epicenters: Mongwalu, Rwampara, and Bunia. Armed conflicts are ongoing in these regions. These conflicts can lead to increased movement among the population and thus also make contact tracing more difficult. Health organizations and measures also have difficulty reaching the population. According to Muñoz-Fontela, these factors could exacerbate the epidemic.
“The lack of a licensed vaccine and specific therapies, as well as the limited availability of specific diagnostic tests for the Bundibugyo virus, make it considerably more difficult to contain the outbreak,” explains Prof. Stephan Becker from the University of Marburg, deputy coordinator of the DZIF’s research area Emerging Infections.
International cooperation is also crucial, emphasize the DZIF researchers. “Outbreak areas often have limited health infrastructure and are additionally affected by conflicts and climate-related stresses,” says Prof. Marylyn Addo, Vice Chair of the DZIF Executive Board and specialist in infectious diseases at the University Medical Center Hamburg-Eppendorf. “To prevent global spread, outbreaks must be detected early and consistently contained.”
At the same time, DZIF experts view the current outbreak as a warning sign for global health preparedness. “International epidemic preparedness has improved in recent years, but remains underfunded and politically fragile in many places,” Becker adds. “Long-term investments in surveillance systems, diagnostics, vaccine development, and local health infrastructure are necessary.”
The WHO, the ECDC, and national health authorities are closely monitoring the situation. Previous Ebola outbreaks in the region were ultimately brought under control through international cooperation and consistent containment measures.
Further information on the Ebola outbreak and the Ebola virus can be found here:
• WHO statement „Epidemic of Ebola Disease caused by Bundibugyo virus in the Democratic Republic of the Congo and Uganda determined a public health emergency of international concern“
• ECDC news “WHO declares Ebola outbreak in the Democratic Republic of the Congo a Public Health Emergency of International Concern: ECDC continues monitoring”
