A police officer has been hospitalized and authorities are in alert mode in East Harlem in New York City after the discovery of a dangerous disease. Authorities have discovered Legionnaires’ disease in the 23rd Precinct in Harlem after an officer began exhibiting the trademark symptoms of the disease.

It resulted in a warning from the city health department, which pointed to preliminary results from an independent contractors’ investigation identifying Legionnaires’ as the culprit. In response, they’ve shut down the building’s HVAC systems and hot water supply.

The disease is generally easily treatable, with patients exhibiting flu like systems like fever and coughing, although it can cause difficulty breathing which can be life threatening. The disease is not contagious, but is rather spread through water vapor containing the bacteria.