State health officials have been called in to help contain an outbreak of Legionnaires' disease in Roslyn Heights.

Two cases have been confirmed at the Sunharbor Manor Residential Health Care Facility, according to a letter sent by the facility to residents and relatives of residents. Sunharbor Manor, a nursing home and rehab facility, did not reveal in the letter the condition of the two people who contracted the disease. Facility officials were unavailable for comment on-camera.

Health officials say the elderly and individuals with weak immune systems are most susceptible to the potentially fatal disease, which is contracted by breathing in specific bacteria. The bacteria is often found in warm water, such as air conditioning and plumbing systems, or hot tubs, which is why Sunharbor Manor has suspended the use of whirlpools for residents.

The Center for Disease Control says symptoms of Legionnaires' disease include high fever, chills, cough, muscle aches and headaches. Facility officials say anybody there with a cough, congestion and a temperature greater than 100 degrees will be tested.