Dr David McIlwain is a senior research scientist in the Department of Pathology at Stanford University, USA. He brings his expertise in advanced single cell analysis tools with the CODEX system. He studied in Canada, receiving his undergraduate degree from McGill University and his PhD from the University of Toronto, advised by Dr Tak W. Mak. His doctoral work used reverse genetics to discover a new factor controlling the production of inflammatory mediator TNF. He completed his postdoctoral training investigating viral pathogenesis at both the Department of Gastroenterology, Hepatology, and Infectious Disease at Heinrich-Heine-Universität in Dusseldorf, Germany, advised by Philipp Lang, and the Department of Microbiology and Immunology at Stanford University, advised by Dr Garry Nolan. Dr McIlwain uses advanced single cell analysis tools including CyTOF and a multiparameter tissue imaging platform named CODEX to map systems-level immune responses to infections including SARS-CoV-2, Ebola, influenza, B. pseudomallei, and Zika in humans and animal models. He currently oversees a team examining sequelae and immunopathology of Ebola virus infections in West and Central Africa and acts as a subject matter expert for clinical trials.