The outbreak, caused by the Bundibugyo species of Ebola, became the largest and deadliest ​in Congo's history after surpassing the 2018-2020 epidemic. It is ​now second only to the 2014-2016 West African outbreak, ⁠which infected over 28,600 people and killed more than 11,000 ​across Guinea, Liberia and Sierra Leone.

Government figures showed the death toll ​had risen to 3,007, while confirmed cases reached 6,186.

The outbreak was formally declared in Ituri province on May 15, though some health officials and ​experts say it may have started as early as January.

It has ​since spread to six provinces, despite efforts by Congolese authorities, the World Health ‌Organisation ⁠and aid groups to contain it.

Health experts say weak surveillance systems, insecurity and community resistance have hampered efforts to identify and treat patients early.