Ebola Strikes West Africa Again – Key Questions 24/02/2021 Medical staff working with Medecins sans Frontieres (MSF) prepare to bring food to patients kept in an isolation area at the MSF Ebola treatment centre in Kailahun, Sierra Leone. Photo: Reuters/Tommy Trenchard News of a new outbreak of Ebola in Guinea is indeed distressing. The last in West Africa occurred between 2014 and 2015 and affected Liberia, Sierra Leone and Guinea. It was the world’s deadliest Ebola outbreak, which began in Guinea and in which more than 11,300 people died. Among these were over 500 health workers. But countries in the West African region are in a very different position seven years on.