Officials with the New York City Department of Health and Mental Hygiene are investigating two cases of Legionnaires' that occurred among residents living in the same building in Queens within a 12-month span, according to CBS New York.
One of the infected residents remains hospitalized. The other has been discharged.
"While the risk of infection to tenants is very low, as part of the routine protocol to assess potential sources of Legionnaires' disease, the health department is working with the building management to test the building's water supply," said the health department in a statement obtained by CBS New York.
Legionnaires' is a particularly virulent form of pneumonia caused by Legionella bacteria and is contracted through the inhalation of small droplets of contaminated water. It is not transmitted via person-to-person contact.
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