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ATS/IDSA Guidelines for Diagnosis and Treatment of Adults with Community-acquired Pneumonia

Published ,

American Journal of Respiratory and Critical Care Medicine, Volume 200, Issue 7, 1 October 2019, Pages e45-e67,
Published: 01 October 2019

Additional Resource: Community-Acquired Pneumonia (CAP) Clinical Pathway 

Additional Resource: Community-Acquired Pneumonia (CAP) Clinical Pathway Overview Presentation

Joshua P. Metlay, Grant W. Waterer, Ann C. Long, Antonio Anzueto, Jan Brozek, Kristina Crothers, Laura A. Cooley, Nathan C. Dean, Michael J. Fine, Scott A. Flanders, Marie R. Griffin, Mark L. Metersky, Daniel M. Musher, Marcos I. Restrepo, and Cynthia G. Whitney; on behalf of the American Thoracic Society and Infectious Diseases Society of America


Background: This document provides evidence-based clinical practice guidelines on the management of adult patients with community-acquired pneumonia.

Methods: A multidisciplinary panel conducted pragmatic systematic reviews of the relevant research and applied Grading of Recommendations, Assessment, Development, and Evaluation methodology for clinical recommendations.

Results: The panel addressed 16 specific areas for recommendations spanning questions of diagnostic testing, determination of site of care, selection of initial empiric antibiotic therapy, and subsequent management decisions. Although some recommendations remain unchanged from the 2007 guideline, the availability of results from new therapeutic trials and epidemiological investigations led to revised recommendations for empiric treatment strategies and additional management decisions.

Conclusions: The panel formulated and provided the rationale for recommendations on selected diagnostic and treatment strategies for adult patients with community-acquired pneumonia.

Keywords: community-acquired pneumonia; pneumonia; patient management

Supplementary Data

Executive Summary

Metlay Data Supplement 

Additional Resources (Updated as of 11/1/23)

Pocket Card

CAP Clinical Pathway 

Community-Acquired Pneumonia (CAP) Clinical Pathway Overview Presentation 

Community-Acquired Pneumonia (CAP) Clinical Pathway Overview



For the full list of references, please visit the American Journal of Respiratory and Critical Care Medicine

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