William Paul Duprex (pronounced /djuːpreɪˈ/; born 1968) is a British scientist and advocate for vaccines and global health. He serves as Director of the University of Pittsburgh's Center for Vaccine Research and Regional Biocontainment Laboratory. Duprex holds the Jonas Salk Chair in Vaccine Research. He is also a professor of microbiology and molecular genetics at the University of Pittsburgh School of Medicine and serves as Editor-in-Chief of the Journal of General Virology, which is published by the Microbiology Society, and a senior editor of mSphere, published by the American Society for Microbiology. Duprex is an expert in measles and mumps viruses and studies viral spillover from animals to humans, including the SARS-CoV-2 virus that caused the COVID-19 pandemic. Duprex is a Fellow