1 Types of ventilationassociated pneumonia (VAP) Download Scientific Diagram 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 Does Ventilator Associated Pneumonia really exist? Let's Talk Science with Marc Bonten Today's Topic: Ventilator Associated Pneumonia (VAP) VAP is a type of pneumonia that develops 48 hours or more after intubation and mechanical ventilation. Why It Happens: Bacteria enter the Ventilator assoziierte Pneumonien