DULUTH, Ga. (AP) — State health officials and executives of a metro Atlanta hospital say more than 100 patients may have been exposed to tuberculosis.

Officials said Tuesday that an unidentified Gwinnett Medical Center employee was recently diagnosed with tuberculosis. Officials say all of the facility's employees must take annual tuberculosis skin tests in June. Authorities say the employee likely developed the disease in mid-May and is expected to recover.

The hospital's Executive Vice President Alan Bier says 133 letters have been sent to patients who had the most direct contact with the worker between February and May. The letters advise patients who had contact with the employee to undergo tuberculosis testing.

Officials say no other Gwinnett Medical Center employees have tested positive for the disease.