- Gardiner Chair & Head of the Department of Immunology, Glasgow University
- Founding Director of the Glasgow Biomedical Research Centre
- Fellow of the Royal Society, U.K.
- Fellow of the Academy of Medical Science
- Chair of Virology at the School of Public Health, HKU
- Fellow of the Royal Society of London
- Foreign Associate of National Academy of Sciences
- Director of Centre for Oncology and Immunology, HKU
- FRSC, FRS
- Foreign Associate of the National Academy of Sciences
- Founding Member of The Hong Kong Academy of Sciences
- Chairman of the Department of Clinical Oncology, CUHK
- Fellow of ASCO
- Past President of International Association for the Study of Lung Cancer
- Member of The Hong Kong Academy of Sciences
- Emeritus Professor of Department of Biomedical Engineering, Boston University
- Fellow of US National Academy of Inventors
- Fellow of the Biophysical Society
- Member of National Academy of Sciences
- Member of American Academy of Arts and Sciences
- Honorary Member of Japanese Biochemical Society