Compliance with VAP bundle implementation and its effectiveness on surgical and medical sub population in adult ICU ScienceDirect 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 Preventing ventilator associated pneumoniaa mixed method study to find behavioral leverage for better protocol adherence Infection Control & Hospital Epidemiology Cambridge Core Nurse led implementation of a ventilator associated pneumonia care bundle in a children's critical care unit