Legionnaires’ Disease Cases Surge in North Carolina, Health Officials Urge Precautions
A significant rise in Legionnaires’ disease cases has been reported across North Carolina, with a nearly 50% increase observed last year. This concerning trend has prompted the North Carolina Department of Health and Human Services to emphasize the importance of preventive measures.
Legionnaires’ disease, a severe form of pneumonia, is caused by Legionella bacteria, which thrive in warm, moist environments ranging from 77 to 113 degrees Fahrenheit. Common sources include hot tubs, water fountains, and misting devices. Infection occurs when individuals inhale contaminated mist or vapor. Certain demographics, such as smokers, individuals over 50, and those with chronic lung conditions or weakened immune systems, are particularly vulnerable.
In 2024, the state documented 201 cases of Legionnaires’ disease, escalating to 310 cases last year. In response to this increase, Dr. Erica Wilson, the medical director of the medical consultation unit in the Division of Public Health, has provided guidance on preventive actions. “To prevent it, you need to keep things flushed, so your faucets, showers, garden hoses,” she advises. She also recommends maintaining hot water heaters at temperatures above where the bacteria proliferate and being cautious with medical devices such as CPAP machines.
Dr. Wilson further advises against using tap water if a medical device manufacturer specifies cleaning with distilled water. Additionally, she cautions against diluting windshield wiper fluid, as the mist can be drawn inside vehicles when windows are open.
