Primary Outcome Measures:
- Identification of etiology of pneumonia [ Time Frame: 7 day from the time of pneumonia diagnosis ]
Secondary Outcome Measures:
- Pneumonia-related death [ Time Frame: 1 month ]
All patients admitting medical ICU will be monitored for pneumonia. Both community-acquired (including health-care associated pneumonia) and hospital-acquired pneumonia will be included. Collecting data will include patient demographic characteristics, clinical features, microbiological characteristics including molecular work, and outcome.