Legionnaires’ disease is a type of pneumonia. It is caused by bacteria (Legionella) that grow in warm water. Legionnaires’ disease causes flu-like symptoms, and complications from the disease can be fatal.
You can only get Legionnaires’ disease by breathing in water vapor containing the bacteria from sources such as cooling towers, showers and hot tubs. People who are sick with this disease cannot make others sick.
You are at a high risk for Legionnaires’ disease if you:
Legionnaires’ disease symptoms include fever, chills, muscle aches and a cough. You may also have headaches, fatigue, loss of appetite, confusion or diarrhea.
If you have these symptoms, seek medical attention right away. You are especially at risk if you are a smoker or have a medical condition that affects your breathing. Tell your health care provider you are worried about Legionnaires’ disease.
There is no vaccine or medicine that can prevent Legionnaires’ disease. The best way to prevent it is through the proper maintenance of water systems where Legionella may grow.
In NYC, building owners are required to register cooling towers. They also need to routinely test the water for the presence of Legionella. Learn more about NYC cooling tower registration and maintenance.
For building water systems, the Centers for Disease Control and Prevention (CDC) recommends that buildings proactively check their risk for Legionella growth and create a water management program.