Sean O'Leary | Chair, Committee on Infectious Diseases, AAP; Professor, Pediatrics-Infectious Diseases
University Of Colorado Anschutz Medical Campus

Sean O’Leary, MD, MPH is a Professor of Pediatrics at the University of Colorado School of Medicine and Children’s Hospital Colorado, a pediatric infectious diseases specialist, an investigator at ACCORDS (Adult and Child Center for Outcomes Research and Delivery Science), and the Director of the Colorado Children’s Outcomes Network (COCONet), Colorado’s pediatric practice-based research network. With over 240 peer-reviewed publications, Dr. O’Leary’s primary area of research focuses on prevention of vaccine-preventable diseases through understanding clinical, attitudinal and infrastructural barriers to vaccination, and developing and testing interventions to address those barriers. Much of his recent work focuses on studying how best to communicate about vaccines in clinical settings. Dr. O’Leary is a member of the American Academy of Pediatrics (AAP) Council on School Health and serves as the Chair of the Committee on Infectious Diseases (the Red Book Committee) for the AAP. Dr. O’Leary served for many years as a liaison to the CDC’s Advisory Committee on Immunization Practices (ACIP) for the AAP and Pediatric Infectious Diseases Society, and until recent events served on several ACIP Work Groups, including COVID-19, RSV and HPV. He also serves as the co-chair of the Policy Committee for Immunize Colorado, as a Director for the National Foundation for Infectious Diseases, and as a member of the Steering Committee for Voices for Vaccines. Prior to his infectious diseases fellowship, Dr. O’Leary was a partner in a large general pediatric practice in Fort Collins, Colorado for 8 years.