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EARS Early Aberration Reporting System

Photo of EARS staff

The Early Aberration Reporting System (EARS) was pioneered as a method for monitoring bioterrorism during large-scale events. Its evolution to a standard surveillance tool began in New York City and the national capital region following the terrorist attacks of September 11, 2001.

Various city, county, and state public health officials in the United States and abroad use EARS on syndromic data from emergency departments, data collected at shelters after disasters, reportable conditions, 911 calls, physician office data, school and business absenteeism, and over-the-counter drug sales. EARS is convenient, easy to use, and available at no cost.

After a decade of new product development and version updates, EARS has ended operations as an independent CDC program. All EARS products will continue to remain archived and available to you on this website, but without any technical or programmatic support. EARS’s core analytic functions will also be sustained in the CDC’s Epi Info™ Suite of tools. The integration with Epi-Info is a natural one; combining the EARS aberration detection algorithms with Epi-Info’s data collection options, additional analyses, and customized visualization.

For more information, explore this site, or view our fact sheet. To learn about the aberration detection methods available in Epi-Info please visit the Epi Info™ website.

Additional Information

Contact Us:
Ready.gov - Prepare. Plan. Stay Informed.
USA.gov: The U.S. Government's Official Web PortalDepartment of Health and Human Services
Centers for Disease Control and Prevention   1600 Clifton Rd. Atlanta, GA 30333, USA
800-CDC-INFO (800-232-4636) TTY: (888) 232-6348 - Contact CDC-INFO

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