Evidence based strategies to prevent ventilator associated pneumonia 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 Development of a Tool for Measuring Ventilator Associated Pneumonia Prevention Behaviors of Intensive Care Unit Nurses ASH Guidelines on Use of Anticoagulation in Patients with COVID 19 Hematology.org Updated IDSA ATS Guidelines on Management of Adults With HAP and VAP