Dr. O'Leary is a Pediatric Infectious Diseases specialist and Associate Professor of Pediatrics at the University of Colorado. He received a BA in Environmental Studies from Brown University in 1991 and graduated from University of Texas Houston Medical School in 1996. After completing pediatric residency at The Children's Hospital in Denver in 1999, he moved to Fort Collins where he practiced as a general pediatrician for 8 years. Dr. O’Leary is the director of the Colorado Children’s Outcomes Network (COCONet), Colorado’s pediatric practice-based research network. His research focuses on identifying barriers to vaccination and developing and testing interventions to address those barriers. He serves as the liaison to the Advisory Committee on Immunization Practices (ACIP) for the Pediatric Infectious Diseases Society. He is also on the AAP’s Committee on Infectious Diseases (Red Book Committee). He serves as a co-chair of the Policy Committee for the Colorado Children’s Immunization Coalition (CCIC) and co-chair of the Immunization Committee for the Colorado Chapter of the AAP.