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CHRIS TALBOTT AP Music Writer

NASHVILLE, Tenn. (AP) - Doctors say country music star Randy Travis was in good health until three weeks before he was hospitalized and is now in congestive heart failure because of a viral respiratory illness he contracted.

The information came in a video statement from Drs. William Gray and Michael Mack of The Heart Hospital Baylor Plano on Wednesday.

The singer underwent a procedure to increase blood flow after being admitted to a Texas hospital Sunday with viral cardiomyopathy, a heart condition caused by a virus.

The 54-year-old Grammy Award-winning singer, best known for hits "Forever and Ever, Amen" and "Three Wooden Crosses," became ill after a virus infected his heart muscle, causing it to become weakened and enlarged so that it could not pump properly.

Cardiomyopathy can lead to heart failure.