Dr Aditi Dey is the Manager, Surveillance at the National Centre for Immunisation Research & Surveillance (NCIRS). She has completed her PhD, Master of Public Health (MPH) and Graduate Diploma in Applied Science (Health Information Management) at the University of Sydney after her medical degree (MBBS) and training in tropical medicine. Aditi has worked at the University of Sydney, and also in Thailand and India before joining NCIRS. At NCIRS, she is involved in program evaluation, coverage of vaccines, surveillance of vaccine preventable diseases and adverse events following immunisation. Aditi has experience in supervision of research students; teaching and coordination of undergraduate and postgraduate courses and holds a conjoint Senior Lecturer appointment at the Sydney Medical School, University of Sydney.