Healthcare-associated Infections (HAIs) including antimicrobial resistant (AR) pathogens cause hundreds of thousands of illnesses and deaths among U.S. patients each year. Despite significant progress, patients are still experiencing preventable harms in the context of outbreaks and other adverse events that stem from delayed recognition of emerging infectious diseases with potential for healthcare transmission, unsafe healthcare practices, contaminated drugs and medical device risks.

Consistent and coordinated approaches are needed to speed up detection of new threats, develop tools to support outbreak investigation, stop outbreaks from spreading, and better inform prevention activities. To address these needs, CDC’s Division of Healthcare Quality Promotion has funded the Association of State and Territorial Health Officials (ASTHO) and the Council of State and Territorial Epidemiologists (CSTE) to create and co-lead the Council for Outbreak Response: HAI/AR (CORHA).


To improve practices and policies at the local, state and national levels for detection, investigation, control and prevention of HAI/AR outbreaks across the healthcare continuum, including emerging infections and other risks with potential for healthcare transmission.


Public health and healthcare collaborating effectively to protect patients and prevent harms from HAI/AR outbreaks.


CORHA is led by a Governance Committee with members from ASTHO, CSTE, CDC, and the National Association of County and City Health Officials (NACCHO), with additional members representing the Association for Professionals in Infection Control and Epidemiology, and the Society for Healthcare Epidemiology of America.

Contact Information

For more information, please contact Kate Heyer ( and Nicole Bryan (