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.

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Transforming patient care

Transforming patient care
133 countries - one ATS community

133 countries - one ATS community
Impacting Global Health

Impacting global health
Leading scientific discoveries.

Leading scientific discoveries
Advancing professional development

Advancing professional development

Transforming Patient Care

ATS 2025 San Francisco Plenary Session: Hear from Alpha-1 Antitrypsin Deficiency Awareness Advocate Len Geiger

Len Geiger, a double lung transplant recipient and advocate for Alpha-1 antitrypsin deficiency awareness, will share his inspiring journey and call for greater collaboration, empathy, and innovation in respiratory medicine. The ATS thanks GSK for its support of the ATS 2025 Plenary Session.

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ATS Conference News

Read the official news source for ATS 2025 and your guide to the International Conference, featuring previews and coverage of the biggest sessions, research presentations, discussion topics, and more.

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Learn about our 14 Assemblies and 3 Sections and get involved.

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Our Commitment to Diversity, Equity & Inclusion

The ATS promotes diversity, equity, inclusion, accessibility, and belonging for everyone.

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ATS Codes of Conduct

Learn about our Codes of Conduct and how to report concerns.

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ATS provides Methods in Epidemiological, Clinical and Operations Research (MECOR) in Africa, China, India, Southeast Asia, Latin America, and Turkiye.

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ATS Ed+

Enrich your clinical knowledge and competence, learn from the experts at your own pace, and find relevant opportunities to earn CME/MOC.

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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.

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Advance respiratory health globally with a donation

Every gift matters in the fight against respiratory disease, and helps the next generation. The ATS is committed to your professional growth and the advancement of thoracic medicine. Lend a hand, and together, we can create a world where every breath is a testament to progress in research, pulmonary, critical care, and sleep medicine.
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