Influenza outbreaks should be promptly reported by telephone to the Epidemiology Program at (619) 692-8499, or (858) 565-5255 after hours, in the following circumstances:
Outbreaks in institutions and other residential facilities (e.g., long term care facilities, homes for the developmentally disabled or chronically ill, sleepover camps, prisons) with at least one case of laboratory confirmed influenza in the setting of a cluster (≥2 cases) of influenza-like illness (ILI) within a 72-hour period.
Influenza-like illness (ILI) is defined as fever (≥100° F or 37.8° C) and a cough and/or a sore throat, in the absence of a known cause other than influenza.
Outbreaks of acute respiratory illness in institutions or other congregate settings (e.g., schools, day camps) associated with hospitalizations or fatalities above baseline for that institution or setting.
Outbreaks of acute respiratory illness in an institution, congregate setting, or community where at least one case has had recent exposure to swine, recent travel to an area where novel influenza is circulating, or contact with a confirmed case of swine or novel influenza.
Prevention and Control of Influenza Outbreaks in Long-Term Care Facilities
Please read our Letter to Long-Term Care Facilities. The following guidance documents and resources are available to assist with preventing, managing, and controlling influenza outbreaks in long-term care facilities and similar settings.
Educational Materials and Resources