In a follow-up on the Legionnaires’ disease cluster in the Highbridge area of the Bronx, the New York City Health Department reports the cluster is over and the investigation is closed.

No new cases of Legionnaires’ disease have been identified in residents of the area with symptom onset in the last four weeks. There were 30 cases of Legionnaires’ disease associated with this cluster. Twenty-eight people were hospitalized, 24 have been discharged, and two New Yorkers died.

After extensive epidemiologic investigation, sampling of area cooling towers, and molecular analysis of Legionella bacteria from human and cooling tower specimens, the Health Department’s Public Health Laboratory and epidemiologists have matched the Legionella strain found in the cooling tower located at 1325 Jerome Ave, 10452 with the strain found in two patients from the Highbridge cluster. The Health Department sampled that cooling tower on the day the investigation began on May 20. 

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