Early Aberration Reporting System
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.
- Six Steps to Set Up Syndromic Surveillance
Instructions for using EARS
- Data Requirements
Types of data that the EARS program can accept
- Simulation Data Sets
Simulation data sets for comparison of aberration detection methods
Publications related to EARS
Download archived versions of EARS
- Page last updated September 19, 2012
- Content source: CDC Emergency Risk Communication Branch (ERCB), Division of Emergency Operations (DEO), Office of Public Health Preparedness and Response (OPHPR)
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