The National Outbreak Reporting System (NORS) is a web-based platform designed to support reporting to CDC by local, state, and territorial health departments in the United States of all waterborne disease outbreaks and enteric disease outbreaks transmitted by food, contact with environmental sources, infected persons or animals, or unknown modes of transmission. NORS launched in 2009 following a four-year effort by CDC to plan, develop, and launch the project.

If you are a member of the general public and would like to report an outbreak, please contact your local or state health department. Contact information can be found at Public Health Resources: State Health Departments.