1 Centre for Research on Health Care in Disasters, Health Systems and Policy, Department of Public Health Sciences, Karolinska Institutet, Stockholm, Sweden.
2 All-Ireland Hub for Trials Methodology Research, Centre for Public Health, Institute of Clinical Sciences, Queens University Belfast, Royal Hospitals, Belfast, United Kingdom; Evidence Aid, Oxford, United Kingdom.
3 Evidence Aid, Oxford, United Kingdom.
4 Evidence Aid, Centre for Global Health & School of Psychology, Trinity College Dublin, Dublin, Ireland.
5 The Lancet, London, United Kingdom.
6 National University of Ireland Galway & West Northwest Hospitals Group, Ireland.
7 Centre for Global Health & School of Psychology, Trinity College Dublin, Dublin, Ireland.
8 United Nations High Commissioner for Refugees, Geneva, Switzerland.
9 Extreme Events and Health Protection, Public Health England, London, United Kingdom.
10 Operational Research, Médecins Sans Frontières- Brussels Operational Centre, Gasperich, Luxembourg.
11 Department of Immunisation, Hepatitis and Blood Safety, Public Health England, London, United Kingdom.
12 Medicine Editorial Director, PLOS, Brisbane, Australia.
Martin Gerdin and colleagues argue that disaster health interventions and decision-making can benefit from an evidence-based approach Please see later in the article for the Editors' Summary.