Outbreak Brief 15: Ebola virus disease (EVD) Outbreak

1 June 2021

Outbreak Update: Since 25 May 2021, no new cases or deaths from Ebola virus disease (EVD) have been reported in Guinea. Cumulatively 23 cases, 12 deaths (CFR: 52.1%), and 10 recoveries of EVD have been reported. This includes five health care workers. The last confirmed EVD case and death was reported on 4 April 2021. A 42-day countdown was started on 8 May 2021 to declare the end of Guinea’s EVD outbreak (18 days remaining). A total of 10,873 persons have been vaccinated against EVD in Guinea since the beginning of the outbreak.
Guinea continues with Viral Hemorrhagic Fever (VHF) surveillance and on 17 May 2021, the Ministry of Health (MoH) declared an outbreak of Lassa fever in Yamou prefecture, NZérékoré region. A fatal case of Lassa fever was confirmed and no new case has been reported to date.
Member States bordering Guinea continue to remain vigilant. Sierra Leone has reported 50 alerts since the onset of EVD in Guinea. Forty-eight of these alerts were investigated and tested negative for Ebola virus (but one tested positive for Lassa fever); two were notified after burial. Since the onset of the outbreak, 468 persons have been vaccinated in Sierra Leone against EVD.