Expert Directory

Sean O’Leary, MD, MPH

Vice Chair, Committee on Infectious Diseases
American Academy of Pediatrics
Professor of Pediatrics
Children’s Hospital Colorado
University of Colorado School of Medicine
Aurora, CO

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 the Adult and Child Consortium for Health Outcomes Research and Delivery Science (ACCORDS), and vice chair, Committee on Infectious Diseases (the Red Book Committee), American Academy of Pediatrics.

After completing college at Brown University and medical school at The University of Texas Health Science Center at Houston, Dr O’Leary did his pediatric residency in Denver at Children’s Hospital/University of Colorado. Following his residency, he was a partner in a large pediatric practice in Fort Collins, CO, for 8 years. He then returned to Denver to pursue an infectious diseases fellowship and a primary care research fellowship. 

With more than 120 peer-reviewed publications, his research focuses on the prevention of vaccine-preventable diseases through understanding clinical, attitudinal, and infrastructural barriers to vaccination, and developing and testing interventions to address those barriers. Dr O’Leary serves as the liaison to the Centers for Disease Control and Prevention’s Advisory Committee on Immunization Practices for the Pediatric Infectious Diseases Society.