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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: