Key words: Capacity building, Ebola, Liberia, mental health, psychological first aid, psychosocial support, Sierra LeoneThe article originally stated that the authors were supported by a grant from ELHRA as one of its R2HC projects. To expand on this, the work reported was funded by ELRHA's Research for Health in Humanitarian Crises (R2HC) Programme, which aims to improve health outcomes by strengthening the evidence base for public health interventions in humanitarian crises. The R2HC programme is funded by the UK Government (DFID), the Wellcome Trust, and the UK National Institute for Health Research (NIHR).