1 Advice on the use of masks the community, during home care and in health care settings in the context of the novel coronavirus (2019-nCoV) outbreak Interim guidance 29 January 2020 WHO/nCov/IPC_Masks/2020.1 Introduction This document provides rapid advice on the use of medical masks in communities, at home and at health care facilities in areas that have reported outbreaks caused by the 2019 nov