The<unk>  was an outbreak of<unk>  virus disease (EVD) that ravaged the eastern Democratic Republic of the Congo (DRC) in Central Africa from 2018 to 2020. Between 1 August 2018 and 25 June 2020 it resulted in 3,470 reported cases. The<unk>  outbreak also affected Ituri Province, whose first case was confirmed on 13 August 2018. In November 2018, the outbreak became the biggest<unk>  outbreak in the DRC's history, and had become the second-largest<unk>  outbreak in recorded history worldwide, behind only the 2013–2016 Western Africa epidemic. In June 2019, the virus reached Uganda, having infected a 5-year-old Congolese boy who entered Uganda with his family, but was contained. A military conflict in the region that had begun in January 2015 hindered treatment and prevention efforts. The World Health Organization (WHO) described the combination of military conflict and civilian distress as a potential "perfect storm" that could lead to a rapid worsening of the outbreak. In May 2019, the WHO reported that since January 85 health workers had been wounded or killed in 42 attacks on health facilities. In some areas, aid organizations had to stop their work due to violence. Health workers also had to deal with misinformation spread by opposing politicians. Due to the deteriorating security situation in North<unk>  and surrounding areas, the WHO raised the risk assessment at the national and regional level from "high" to "very high" in September 2018. In October, the United Nations Security Council stressed that all armed hostility in the DRC should come to a stop to better fight the ongoing EVD outbreak. A confirmed case in Goma triggered the decision by the WHO to convene an emergency committee for the fourth time, and on 17 July 2019, the WHO announced a Public Health Emergency of International Concern (PHEIC), the highest level of alarm the WHO can sound. On 15 September 2019, some slowdown of EVD cases was noted by the WHO in DRC. However, contact tracing continued to be less than 100%; at the time, it was at 89%. As of mid-October the transmission of the virus had significantly reduced; by then it was confined to the Mandima region near where the outbreak began, and was only affecting 27 health zones in the DRC (down from a peak of 207). New cases dwindled to zero by 17 February 2020, but after 52 days without a case, surveillance and response teams on the ground confirmed three new cases of<unk>  in Beni health zone in mid-April. On 25 June 2020, the outbreak was declared ended. As a new and separate outbreak, the Congolese health ministry reported on 1 June 2020 that there were cases of<unk>  in Équateur Province in north-western DRC, described as the eleventh<unk>  outbreak since records began. This separate outbreak was declared over as of 18 November following no reported cases for 42 days, and caused 130 cases and 55 deaths.
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