From Common Infection to Critical Threat Pneumonia is a lung infection that can be: Community acquired (CAP) contracted outside healthcare settings Hospital acquired (HAP) develops during a hospital stay Ventilator associated (VAP) Pneumonia: Infection of the lung parenchyma resulting in inflammation and consolidation of alveolar spaces. Classification Community Acquired Pneumonia (CAP) Hospital Acquired Pneumonia (HAP) (48 hours after admission) Ventilator Diagnosis, management and treatment of nosocomial pneumonia in ICU Serene Everything You Need To Know About the New ATS IDSA Community Acquired Pneumonia Guidelines FOAMid