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 Updated IDSA ATS Guidelines on Management of Adults With HAP and VAP Today's Topic: Ventilator Associated Pneumonia (VAP) VAP is a type of pneumonia that develops 48 hours or more after intubation and mechanical ventilation. Why It Happens: Bacteria enter the Oral Wellness Measures Show Mitigation in Hospital Acquired Pneumonia Infection Control Today Microbiology of Ventilator Associated Pneumonia IntechOpen