We help the world breathe.
The American Thoracic Society improves global health by advancing research, patient care, and public health in pulmonary disease, critical illness, and sleep disorders.

Shape the Future of Respiratory Medicine at ATS 2026 Orlando!
Your expertise and insights are critical in shaping the discussions and education at ATS 2026. The call for input deadline is June 25, 2025.
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Advancing Professional Development
Future ATS Fellows: Apply Now
The ATS Fellow designation is a mark of distinction that recognizes the accomplishments, dedication, and contributions of members to the Society and the fields of pulmonary, critical care, and sleep medicine. Applications close August 31, 2025.
Join Us
When you become a member of our global American Thoracic Society community of 16,000+ health care providers and researchers, you’ll have access to:
+ Cutting-Edge science through ATS journals and publications.
+ Discounts on the Annual ATS International Conference, CME, and ATS Ed+ products.
+ A robust, collaborative online medical community of peers in our ATS DocMatter Community.
Advance respiratory health globally with a donation