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Influenza (flu) is a contagious respiratory illness caused by influenza viruses.

The following guidance from CDC represents a useful starting place for anyone who is interested in preventing, identifying and managing influenza outbreaks in healthcare settings:

CDC also provides some healthcare setting-specific guidance as follows:

Note – many health departments find it helpful to send healthcare partners, such as nursing homes, annual reminders about influenza prevention and procedures for reporting possible outbreaks:

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CORHA Thresholds for Reporting and Investigating Cases of Influenza


The thresholds and outbreak definitions presented below are based on available scientific resources and expert opinion and intended only as guidance for potential adaptation to the local epidemiology of...… Read More »

CORHA Principles and Practices for Healthcare Outbreak Response


The CORHA Principles and Practices for Healthcare Outbreak Response is a comprehensive reference developed with the aim of equipping public health, healthcare, and other stakeholders with information on a...… Read More »
Disclaimer: The positions and views expressed in these materials do not necessarily represent the official positions of CORHA’s member organizations.