Dr Phyllida Travis worked for over twenty years for WHO. She was Director, Department of Health Systems Development, World Health Organization Regional Office for South-East Asia Region from 2015-2019. Before moving to the South-East Asia Region, she was a health systems adviser in WHO headquarters, and also Coordinator, International Health Partnership+ from 2009-2015. Professional interests include health service delivery organization and management in low and middle-income settings; the stewardship of health systems; the monitoring of health system performance, and health development effectiveness. Publications include ‘Working Together for Health’, the World Health Report on the health workforce (principal author), and lead author of Overcoming health system constraints to achieving the Millennium Development Goals, a top ten Lancet paper. Before joining WHO, she worked as a GP in the UK, and for several international NGOs. She is a fellow of the Faculty of Public Health of the Royal College of Physicians of the United Kingdom.