Definition and classification o Pneumonia: inflammation and consolidation of lung tissue due to an intectious agent. o Category: community acquired pneumonia(Cap)and hospital-acquired pneumonia(hapy e hap divided into ventilator associated pneumonia (VAP) or Non-ventilator Associated Pneumonia Pneumonia: inflammation and consolidation of lung tissue due to an infectious agent.  Category: community acquired pneumonia (CAP) and hospital-acquired pneumonia (HAP)  HAP divided into Ventilator Associated Pneumonia (VAP) or Non-ventilator Associated Pneumonia