Criteria for diagnosing ventilator associated pneumonia in children. Download Scientific Diagram History of surveillance of pneumonia in healthcare settings. CDC, Download Scientific Diagram Ventilator Associated Pneumonia (VAP): Why is it so difficult to define? In real world practice: The diagnosis of VAP remains more an exercise in clinical integration than strict adherence to criteria. ()? is a lung infection that can cause serious health complications, especially in patients with weakened immune systems. When a patient is Reducing Ventilator Associated Pneumonia (VAP) HAI Watch