Ventilator-Associated Events

Hospitals Reported
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1,942general acute care hospitals reported in 2020

Infections Reported
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37,205Ventilator-Associated Events in 2020

Changes over Time
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30%significant increase in SIR from 2015 national baseline to 2020 (lower SIRs are better)

HAI Profile

Ventilator-Associated Events

When a medical problem makes it hard or impossible for a patient to breathe on their own, they may be placed on a special breathing machine called a ventilator to save their life. This usually involves placing a tube in the patient’s airway, and attaching the tube to the ventilator. Patients on ventilators are usually very sick, and they can develop problems related to their illness or related to being on a ventilator. This includes infections such as pneumonia or other problems such as fluid buildup in the lungs. Working toward the elimination of HAIs is a CDC priority. The CDC provides national data on infection rates through the National Healthcare Safety Network. Standardized Infection Ratios (SIRs) are summary statistics that allow monitoring of of HAIs over time.

The Standardized Infection Ratio for Ventilator-Associated Events was 1.30 across general acute care hospitals in 2020.


  • Data profiles for Healthcare-Associated Infections include information for Central Line-Associated Bloodstream Infection (CLABSI), Catheter-Associated Urinary Tract Infection (CAUTI), Surgical Site Infections (SSI), Clostridioides difficile (C. difficile) infections, MRSA Bacteremia, and Ventilator-Associated Events (VAE).
  • All HAI data provided on this page are maintained by the CDC's National Healthcare Safety Network (NHSN).
  • Data are only displayed for U.S. states/territories for which at least 5 facilities reported an HAI in the given report year.
  • HAI information available in the Patient Safety Portal include data from 2015 through 2020.
  • Map legends are classified using the Jenks Natural Breaks method.
  • See the Current HAI Progress Report Technical Appendix for the full methodology and details about the data. Past HAI Progress Reports are described in the Data Archive.