She is concurrently Assistant Dean (External Affairs) and Professor of the Chinese University of Hong Kong Faculty of Medicine,[1] Professor at the Jockey Club School of Public Health and Primary Care,[2] Director at the Centre for Global Health (CGH),[3] Director of the Collaborating Centre for Oxford University and CUHK for Disaster and Medical Humanitarian Response (CCOUC), Director of the Centre of Excellence (ICoE-CCOUC) of Integrated Research on Disaster Risk (IRDR),[4] Visiting Professor of Public Health Medicine at the Oxford University Nuffield Department of Medicine,[5] Fellow at Harvard University FXB Center for Health and Human Rights,[6] Honorary Professor at University of Hong Kong Li Ka Shing Faculty of Medicine, and Fellow at Hong Kong Academy of Medicine.

In addition, through the CCOUC China Ethnic Minority Health Project (EMHP) she established in 2009, her team has outreached more than 18,000 villagers in 49 remote, disaster-prone, resource-deficit rural settings in 11 provinces in China and trained about 700 students and scholars from CUHK, HKU, Oxford University and Harvard University.

Moreover, the international online course "Public Health Principles in Disaster and Medical Humanitarian Response"[21] developed by her team to examine the application of public health principles in planning and responding to disaster and humanitarian crises has more than 8,000 students enrolled from six continents since its launch in May 2014.

Another 12 international online courses including "Climate Change and Health"[22] and "Research Methodology for Disaster and Medical Humanitarian Response"[23] developed by her team have also been launched.

Emily Chan is also co-chairperson of the World Health Organization Thematic Platform for Health Emergency & Disaster Risk Management Research Network (WHO H-EDRM Research Network), Co-chairperson of the World Health Organization COVID-19 Research Roadmap Social Science working group (2020–22), and member of the Asia Pacific Science Technology and Academia Advisory Group of the United Nations Office for Disaster Risk Reduction (UNISDR APSTAAG),[24] World Meteorological Organization SARS-CoV-2/COVID-19 Task Team, Scientific Working Group (SWG) of World Health Organization Centre for Health Development (WHO Kobe Centre, WKC),[25] Alliance of International Science Organizations on Disaster Risk Reduction (ANSO-DRR) International Steering Committee, and the Third China Committee for Integrated Research on Disaster Risk (IRDR China), and serves in various technical consultation capacities for World Health Organization (WHO).