Which intervention helps prevent ventilator associated pneumonia (VAP)? An in depth look at ventilator associated pneumonia in trauma patients and efforts to increase bundle compliance, education and documentation in a surgical trauma critical care unit American Journal of Infection Control CAP (Community Acquired Pneumonia), HAP (Hospital Acquired Pneumonia), VAP (Ventilator Associated Pneumonia), and HCAP (Health Care Associated Pneumonia) are types of pneumonia differing by where sumaya Gholami Hospital Acquired Pneumonia and Ventilator Associated Pneumonia: A Literature Review VAP, VAC, IVAC and Ventilator Associated Events: The Need for Objectivity for Surveillance