The Vexing Problem of Ventilator Associated Pneumonia: Observations on Pathophysiology, Public Policy, and Clinical Science Richard H Kallet, 2015 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 Ventilator Associated Pneumonia (VAP) is a serious lung infection that occurs in patients on mechanical ventilation for over 48 hours. It is often caused by bacteria entering the lungs through the ventilator, leading Strategies to Prevent Ventilator Associated Pneumonia in Neonates Clinics in Perinatology