2025 guideline updates for community-acquired pneumonia diagnosis and management.

Guidelines published in 2007 and 2019 from the American Thoracic Society (American Thoracic Society) and Infectious Diseases Society of America provide recommendations for community-acquired pneumonia, but there are a variety of studies that have been published since the release of these guidelines.

The American Thoracic Society published updated guidelines in 2025, which discuss imaging, antibiotic therapy, and corticosteroids.

The updated guidelines support the use of lung ultrasound for diagnosis of community-acquired pneumonia when used by experienced clinicians.