New York City health officials on Friday declared the Harlem Legionnaires’ disease outbreak over, a day after revealing a seventh associated death as the patient count ticked up slightly.
There have been no new cases among people who live and work in the affected area since Aug. 9, health officials said, meaning the cluster can be considered ended.
Legionnaires’ disease is a type of pneumonia caused by Legionella bacteria, which grow in warm water and spread through building water systems.
In total, health officials said 90 people were hospitalized throughout the duration of the outbreak, which went back to late July. Six remain hospitalized. More than 100 (114) were infected.
“While today marks a hopeful step forward for our city, I know we are also grieving,” acknowledged NYC Health Department Acting Commissioner Dr. Michelle Morse. “After an extensive investigation, we were able to identify two cooling towers that had a genetic match with patient specimens. We are working with building owners on next steps to protect the health and safety of Harlem residents and to prevent future clusters.”
It wasn’t immediately clear when the person died. It was the seventh death since the outbreak began in late July. The case count is up to 114 people, as of the health department’s count. Six are hospitalized.
The person died earlier this month outside of New York City. Their death was recently discovered during the city health department’s ongoing investigation of the outbreak that began in late July, the agency said. The department reported a fifth death on Monday.
The bacteria that causes Legionnaires’ disease had been discovered in 12 cooling towers on 10 buildings, including a city-run hospital and sexual health clinic, health officials said. Remediation efforts have since been completed on all of the cooling towers.
People usually develop symptoms — a cough, fever, headaches, muscle aches and shortness of breath — between two days to two weeks after exposure to the bacteria, according to the U.S. Centers for Disease Control and Prevention.
City health officials say people who live or work in the area should contact a health care provider if they develop flu-like symptoms.
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