Ventilator Associated Pneumonia Springer Nature Link Vaping Isn't Safe: Scientists Uncover Alarming Vascular Risks 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 (VAP) is a serious lung infection that occurs in patients on mechanical ventilation for over 48 hours. It is often caused by bacteria entering the lungs through the ventilator, leading