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 PatEdu.com : Ventilator Associated Pneumonia VAP Ventilator associated pneumonia (VAP) is a type of pneumonia that develops at least 48 hours after a patient was intubated and placed on the mechanical ventilator. It's a preventable lung infection that can Ventilator associated pneumonia: pathobiological heterogeneity and diagnostic challenges Nature Communications 2024 Year in Review: Ventilator Associated Pneumonia Brian J. Ring, 2025