A retrospective evaluation of multiple definitions for ventilator associated pneumonia (VAP) diagnosis in an Australian regional intensive care unit ScienceDirect Which intervention helps prevent ventilator associated pneumonia (VAP)? What is VAP?, Ventilator Associated Pneumonia is a lung infection that develops 48 hours or more after endotracheal intubation. It increases ventilator days, costs, and mortality., The Power of Ventilator Associated Pneumonia (VAP): Why is it so difficult to define? In real world practice: The diagnosis of VAP remains more an exercise in clinical integration than strict adherence to criteria. What Is Vaping? Expert Guide