Ventilator Associated Pneumonia (VAP) causes and preventive strategies PDF Ventilator associated pneumonia (VAP) is a type of pneumonia that develops at least 48 hours after a patient was intubated and placed on the mechanical ventilator. It's a preventable lung infection that can Importance of Infection Prevention from VAP and Use of Care Bundle Checklist ()? is a lung infection that can cause serious health complications, especially in patients with weakened immune systems. When a patient is