Welcome to the
American Thoracic Society
The AmericanThoracic Society (ATS) is one of the oldest, largest, and most
prestigious medical societies in the world that serves professionals in pulmonary,
critical care, and sleep medicine.
Founded in 1905 to combat TB, the ATS has grown to address asthma, COPD,
lung cancer, sepsis, acute respiratory distress, and sleep apnea, among other
diseases. ATS improves global health by advancing research, patient care, and public
health in pulmonary disease, critical illness, and sleep disorders.
The Society has members in more than 120 countries, one third of whom live
and work outside the US. In its membership and mission, ATS is truly an international
The ATS mission:
To improve health worldwide by advancing research, clinical care, and
public health in respiratory disease, critical illness, and sleep disorders.