Mary Chambers has a PhD in entomology and disease transmission dynamics from the University of Cambridge. She has worked at OUCRU Vietnam for over 18 years. Ten years ago she developed the public and community engagement programme for OUCRU HCMC and sister units in Hanoi, Nepal and Indonesia. The PE group now has over 15 members who work on a diverse range of engagement projects including a focus on schools engagement, communities such as farmers affected by zoonotic diseases and patients in clinical research trials. She will speak about how engagement with patients and health care workers is essential to support the health care systems in which clinical research is conducted in Vietnam.