Zeb is a bioethicist at the Monash Bioethics Centre where he recently completed a PhD. His academic work on infectious disease ethics is focused on vaccines, vector-borne disease, and drug resistance. He is lead author of the report out of a Wellcome Trust funded project on ethical and regulatory issues related to human challenge studies in endemic settings (2020, Springer Briefs. He has been a member of WHO Ethics Working Groups on human challenge studies as well as vector-borne diseases and antimicrobial resistance. His other publications include work on ethical issues related to malaria, Zika, drug resistance, and evidence-based medicine. He was a 2018 Brocher Foundation Scholar and co-organised a Brocher Workshop on ethical issues associated with asymptomatic infection.