Leading Scientific Discovery
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.

Leading Scientific Discovery
Who's Who: Rachel Scheraga, MD, ATSF
Meet Rachel Scheraga, MD, ATSF, an associate professor at the Cleveland Clinic Lerner College of Medicine who studies how the lung microenvironment affects immune function in response to infection and lung injury, repair, and fibrosis.
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Impacting Global Health
AJRCCM: The Growing Health Burden of Heat Waves with Focus on Respiratory Effects
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Advancing Professional Development
Gain the ATS Mark of Distinction: Apply to Become an ATS Fellow
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Transforming Patient Care
Legionnaires’ Disease: What Patients Need to Know
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Impacting Global Health
ATS Breathe Easy - Environmental Justice & the Climate Challenge
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Advancing Professional Development
Apply Now: Virtual International Pediatric Pulmonology Research Academy (VIPPRA)
Join Us
When you become a member of our global American Thoracic Society community of 30,000+ 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