Ventilator Associated Pneumonia (VAP): Prevention Matters VAP is a serious lung infection that can develop in patients on mechanical ventilation for more than 48 hours. Early prevention and proper care can significantly PatEdu.com : Ventilator Associated Pneumonia VAP Main endogenous and exogenous risk factors for VAP. Download Scientific Diagram VAP Bundle Ventilator Associated Pneumonia Ventilator Associated Pneumonia ( VAP) is a lung infection that occurs in patients who are on mechanical ventilation for more than 48 hours. A VAP bundle is a set of Vap Disease Ventilator Associated Pneumonia (VAP) in Neurocritical Patients: The Hidden Dialog of Brain and Infection