Public Health Data Inventory

Inpatient Influenza-Like Illness (ILI) Surveillance


Influenza-like illness (ILI) is defined as any patient with physician-diagnosed influenza or ILI, or any patient with fever greater than or equal to 100º F (37.8º C), oral or equivalent, AND cough and/or sore throat (in the absence of a known cause other than influenza). Patients who meet these criteria should be reported even in the absence of confirmatory lab tests.

Type of Data

The data are program-level for ongoing surveillance.

Data Collection Method and Availability

All hospitals submit the total number of admissions, total number of patients with ILI by age for surveillance week. Point-in-time data includes ILI, number of patients on ventilator, staff shortage (Y/N), and percentage of bed occupied. The database includes the number of total admissions and those who were diagnosed with ILI per surveillance week, by age. On a weekly basis, infection preventionists from Nebraska hospitals submit ILI admission data to their local public health department to be entered into an online database.

Related Links and Reports

Nebraska Seasonal Flu Page

Inpatient Influenza-like-Illness (ILI) Surveillance FAQ

Data Contact

Nebraska Department of Health and Human Services
Division of Public Health
Office of Epidemiology
301 Centennial Mall South
Lincoln, NE 68509
Phone: (402) 471-0935

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