Health officials have not yet confirmed the presence of Legionella bacteria in the building's plumbing system. However, the notices recommend avoiding mist from showers to reduce the risk of inhaling contaminated water vapor, which can cause the disease. It is safe to drink the water in the building, and the disease does not spread between people.

While the Queens cases are isolated infections, they follow two deadly Legionnaires' disease outbreaks this summer in Manhattan and the Bronx. Those earlier outbreaks were linked to rooftop cooling towers, unlike the potential plumbing system source in Queens, which can spread bacteria through showerheads and faucets.

Residents experiencing flu-like symptoms, such as fever, chills, muscle aches, or cough, are urged to seek medical attention. The health department emphasized that most people are unlikely to get sick and there is no risk to the surrounding community.