WASHINGTON — Sen. Dick Durbin, D-Ill., is the new co-chair of the Congressional COPD Caucus, which focuses on patients affected by chronic obstructive pulmonary disease.

It is estimated approximately 24 million Americans, about half of them undiagnosed, are living with COPD. The caucus was created in 2004 by Sen. Mike Crapo, R-Idaho, as a bipartisan, bicameral way to raise awareness of the disease.