The source of a Legionnaires’ disease outbreak in Atlanta that left one woman dead and sickened dozens of other people was a downtown hotel they had visited, Georgia public health officials confirmed this week.

Bacteria was discovered in a cooling tower and a decorative fountain in the atrium of the Sheraton Atlanta Hotel, Nancy Nydam, a spokeswoman for the Georgia Department of Public Health, said on Friday.

“Remediation to the entire hotel water distribution system” has been completed, and testing and sampling of the water at the hotel will continue, Ms. Nydam said.

The hotel reopened Thursday after being cleared by health officials, Andrea Holden, a spokeswoman for Sheraton Atlanta, said in a statement. The hotel voluntarily closed on July 15.