System for Opioid Overdose Surveillance


Opioid overdose represents an urgent public health problem in the United States, with Michigan ranking among the states hardest hit by the dramatic escalation over the past 15 years. A key component of addressing this crisis is timely surveillance—and accompanying data analytics—that can be used to guide resource allocation used for rapid response and prevention.

The System for Opioid Overdose Surveillance (SOS) was created through a partnership between the University of Michigan Injury Prevention Center and Michigan High Intensity Drug Trafficking Areas (HIDTA). SOS is a web-based tool that offers two levels of access. The first level is public, and displays county-level summaries. The second level of access—which is available to authorized public health and public safety users across the state of Michigan -- maps non-fatal and fatal opioid overdose incidents in near real-time, and provides demographic briefs. This interactive dashboard includes features that allow users to tailor visualizations to meet their specific needs. Users can select a data source, a zoom window, and a time frame to display points and descriptive summaries of suspected overdoses. Users can also toggle buttons to restrict the visualizations and summaries to only specific subsets (e.g., age groups and/or genders).

SOS is a previously unavailable tool designed to inform data-driven opioid overdose prevention and response efforts with the goal of reducing overdose injuries and fatalities. Qualitative work completed with community stakeholders suggests SOS can be used to improve planning, implementation, and responses to opioid overdoses. To learn more or request access, visit

Status: Ongoing
Funding: HIDTA (Office of National Drug Control Policy)
Faculty Engagement: Amy Bohnert, Ph.D., MHS
Category: Research