GENEVA — The raging conflict in the Democratic Republic of Congo is hampering efforts to rein in a deadly Ebola outbreak, the head of the World Health Organization (WHO) warned on Wednesday.Dr Tedros Adhanom Ghebreyesus said the east of the country was at the center of a "catastrophic collision of disease and conflict" with the Ebola outbreak in Ituri province outpacing the response.In a statement posted on X, Tedros said the WHO "cannot build community trust or isolate the sick while bombs are falling".The WHO has recorded 10 confirmed Ebola deaths and 220 suspected deaths in DRC since mid-May, while also recording a further 900 suspected cases since Kinshasa declared the outbreak on May 15.The UN health agency said the true spread of the virus was probably much wider. Experts have said it was probably circulating for some time.Tedros stressed that the Bundibugyo strain of Ebola that is spreading in the DRC had “no approved vaccine nor treatment.”Aid workers have been struggling as travel is difficult because of poor road conditions while conflict and mass displacement have also weakened the health system as have international aid cuts.Insecurity is a huge obstacle in eastern DRC, which has been plagued for three decades by conflict involving a litany of armed groups.Ituri, where most of the cases have been reported, has been under military rule since 2021, when the civilian authority was replaced by a military general in an attempt to neutralise dozens of armed groups that operate there.Tedros said stopping transmission in the region "depends entirely on humanitarian access"."Yet ongoing clashes are driving mass displacement, pushing exposed contacts into overcrowded camps and severing critical containment corridors," he added.“Frontline workers are risking everything, while attacks on health facilities make tracking cases and their contacts nearly impossible,” he warned.“We urge all warring parties to agree to an immediate ceasefire to contain this outbreak. To allow us safe and sustained access for medical teams. We plea to prioritize human survival above everything else," he saidTedros was due to arrive in DR Congo on Wednesday to spearhead scaling up efforts to contain the virus.Concerns over the possible spread of the Ebola outbreak has spurred more countries into imposing strict travel restrictions.Canada has announced a temporary 90-day entry ban on residents from DR Congo and neighbouring Uganda and South Sudan. The Bahamas also imposed strict rules meaning foreign nationals from those countries face quarantine or isolation measures.Last week the US banned non-citizens who had travelled to the three places from entering.The Congolese health authorities say around 1,000 people are currently showing symptoms consistent with Ebola.The DR Congo country director for the medical charity Médecins Sans Frontières (MSF) has told the BBC it will take several weeks to get proper infrastructure in place to contain the outbreak.DR Congo health authorities have been struggling to confirm cases of the 220 deaths with only 17 people so far have been confirmed by lab tests as having died from the disease.Medics are also facing a race against time to trace 3,600 people identified as contacts of the infected group.Some 2,000 tests have been distributed, with a further 4,000 due to be sent out. Experimental treatments - including an antibody developed in the US - could also be introduced soon.Ewald Stals, MSF director in DR Congo, said the medical charity and other organisations were working to get medical supplies and workers in to the epicentre of the crisis but insecurity and poor transport links in Ituri province made it difficult."Slowly but surely, there is, of course, some activity going on, but overall, we're still far behind having a control on the situation," he told the BBC.On Wednesday morning the European Centre for Disease Prevention and Control (ECDC) said it would be increasing its presence on the ground.The ECDC said more of its experts would be deployed via the EU Health Task Force.