Prediction of clinical severity and outcome of ventilator associated pneumonia in a tertiary hospital using the VAP PIRO scoring system European Respiratory Society Ventilator Associated Pneumonia IJGM Dove Medical Press Ventilator Associated Pneumonia (VAP) EMCrit Project VAP #HAP #pneumonia The diagnosis of VAP is difficult as clinical signs suggestive of pneumonia, such as fever, tachycardia, and leukocytosis, are nonspecific in critically ill patients. Moreover, particularly in