In its investigation, TNH obtained information drawn from leaked WHO documents that suggests how some health workers and civil servants profited from response funds; and how, in the rush to scale up a response in an active conflict zone, the WHO paid millions of dollars in inflated per diems to Congolese security forces.
The authors of the draft review commissioned by the UN and NGOs - obtained exclusively by TNH - warn that "practices implemented during the Ebola response will inevitably have a direct impact on the ability of aid organisations to control corruption within their programmes".
The UN's emergency aid coordination body, OCHA, acknowledged there had been challenges in the Ebola response - Ituri and North Kivu provinces are relatively remote and located inside an active conflict zone.
In January, David Gressly, the UN's former emergency Ebola response coordinator, told TNH that the attack on the WHO doctor may have been motivated by a desire to divert resources to local health workers.
The outbreak that erupted in North Kivu and Ituri was the first in an active conflict zone, and response operations had to be shut down on numerous occasions because of attacks against clinics and health workers, leading to fresh spikes in Ebola cases and deaths.
