An investigation is underway at Tracey Towers after the Health Department reported at least two cases of Legionnaires' disease in the past year.

The DOH has not told News 12 when exactly the cases were reported, but News 12 has learned they were reported in the past 12 months.

The DOH met with residents Tuesday night, and inspectors are now sampling the buildings' water systems.

Legionnaires' is a serious type of pneumonia or lung infection caused by the legionella bacteria, according to the Centers for Disease Control and Prevention.

The Department of Health says people can get the disease by breathing in water vapor containing the bacteria. Adults with flu-like symptoms are urged to seek medical attention immediately.

DOH says people older than 50 or those with compromised immune systems are more at risk and therefore urged to take baths, not showers.

DOH says they are also asked to avoid creating a mist when washing dishes.

News 12 spoke with Attania Funny who says her 71-year-old mother-in-law, a Tracey Towers resident, is currently in Montefiore Medical Center suffering from pneumonia-like symptoms.

Funny says the DOH contacted her mother-in-law Wednesday to monitor her testing.

The DOH says residents are notified when there are two or more cases of legionnaires' reported at a building within a 12 month period. The DOH is not saying when exactly in those 12 months the two residents were dianosed with Legionnaires'.

Back in February, Legionnaires' was found at the Bronx River Houses. The worst outbreak in the city was in 2015 in the Bronx. More than 100 people were sickened, and there were 12 reported deaths.

A spokesperson from the city's DOH released a statement saying in part, "The Health Department and building management are promptly alerting residents of the situation, and providing guidance on how to prevent exposure, especially for those at higher risk for disease."

The DOH says residents at Tracey Towers can drink cold water from the tap, and they do not need to wear a mask.