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 Acronym Ventilator Acquired Pneumonia Lung Stock Illustration 2725534863 Shutterstock Table III from Ventilator Associated Pneumonia ( VAP ) Semantic Scholar Ventilator associated pneumonia biomarker evaluation (VIBE) study: protocol for a prospective, observational, case cohort study BMJ Open