In response to the 2003 outbreak of severe acute respiratory syndrome (SARS) in Toronto, Canada a working party of bioethicists and other professionals was set up to identify the main ethical issues raised by the outbreak. They reached a consensus on ten key ethical values involved: individual liberty, protection of the public, proportionality, reciprocity, transparency, privacy, protection of communities from stigmatisation, duty to provide care, equity, and solidarity. The applicability of these values is …