Dr. Stephen Popper is a Lecturer in the Division of Infectious Diseases and Vaccinology at the Berkeley School of Public Health. Dr. Popper has a long-standing interest in developing and applying molecular and genomic tools to better understand the epidemiology of infectious disease. Recent work has explored how the human immune transcriptome – the patterns of gene expression in immune cells – can be leveraged to understand differences in the outcomes of infection and vaccination and to identify diagnostic and prognostic biomarkers for acute infections. Dr. Popper is also a technical advisor to PIVOT, a nonprofit working to strengthen healthcare systems in Madagascar, and is involved in efforts to strengthen scientific capacity and opportunities in low-resource settings.