Kenneth W. Witwer is an associate professor of molecular and comparative pathobiology and neurology at the Johns Hopkins University School of Medicine in Baltimore, Maryland, United States. As nominated President-Elect of the International Society for Extracellular Vesicles (ISEV), Witwer previously served as Secretary General and Executive Chair of Science and Meetings of the society. His laboratory studies extracellular vesicles (EVs), noncoding and extracellular RNA (exRNA), and enveloped viruses, including HIV and SARS-CoV-2. Witwer is a member of the Richman Family Precision Medicine Center of Excellence in Alzheimer's Disease, has advised the US Environmental Protection Agency and the US National Institutes of Health, and is an associate editor of the Journal of Extracellular Vesicle