What are the components of the Ventilator Associated Pneumonia (VAP) bundle? A Successful VAP Prevention Program Respiratory Therapy ()? is a lung infection that can cause serious health complications, especially in patients with weakened immune systems. When a patient is 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 Ventilator Associated Pneumonia Bundle ZAP VAP: A Quality Improvement Initiative to Decrease Ventilator Associated Pneumonia in the Neonatal Intensive Care Unit, 2012 2016 Article NursingCenter