Dr. Julie O’Donnell is an Epidemiologist on the Epidemiology and Surveillance Team in the Division of Unintentional Injury Prevention (DUIP) at the National Center for Injury Prevention and Control in the Centers for Disease Control and Prevention, working on the Enhanced State Opioid Overdose Surveillance (ESOOS) program. She is a subject matter expert working on the mortality data component of ESOOS and serves as the Science Officer for several funded states. O’Donnell served as an Epidemic Intelligence Service Officer at the Substance Abuse and Mental Health Services Administration prior to joining DUIP. As an Epidemic Intelligence Service Officer, she conducted field investigations and epidemiologic studies of behavioral health issues, including opioid overdose.