Etiological characteristics and infection-related biomarkers in patients with severe community-acquired pneumonia in the emergency department: A retrospective cohort study.
Severe community-acquired pneumonia (SCAP) remains a leading cause of infectious disease mortality worldwide. Timely identification of causative pathogens and appropriate antimicrobial therapy are critical determinants of patient outcomes. This retrospective cohort study investigated the etiological features of SCAP an...