Professor Sian Griffiths joined The Chinese University of Hong Kong as Professor of Public Health and Director of the School of Public Health in 2005. She became the Chairman of the Department of Community and Family Medicine in 2006. She qualified as a doctor and held a variety of service posts with academic links at international, national, regional and local level within the UK. She was Chair of the Association for Public Health, Co-founded the UKPHA and was President of the UK Faculty of Public Health of the Royal Colleges of Physicians from 2001- 2004.
In 2003, she co-chaired the Hong Kong Government's expert committee into the SARS epidemic as well as the monitoring committee. Since coming to Hong Kong in 2005, she has worked with HKSAR Government, public health professional organizations and colleagues across the healthcare and academic systems. Her interests are in developing health policy through public health approaches and in developing public health capacity to promote the public's health.
She is a member of the UK RAE panel for epidemiology and public health, and is a member of the National Health Authority Board of Qatar. She is an Honorary Professor at Peking University, the School of Public Health, also a Technical Advisor to Public Health research in Shenzhen Center for Disease Control and Prevention. She remains honorary senior clinical lecturer in the Department of Public Health and Primary Care of Oxford University with whom the School of Public Health, The Chinese University of Hong Kong maintain close links. She plays an active role in public health education and policy development in Hong Kong, including advising the HKSAR Department of Health.