Rose Heating Blog

The Basics About Legionnaires’ Disease And HVAC Systems

Legionnaires’ disease was identified and named in 1977 after it infected a large group of American Legion members at a convention in a Philadelphia hotel. This dangerous bacterium is a variety of pneumonia that spreads through HVAC systems and various water fixtures. Although it does not receive the same attention it did in the 1970s, the disease remains a serious concern.

 

How it Develops

The bacterium that causes this disease may grow and accumulate in central air conditioning equipment when water remains stagnant and warm. A similar but less severe condition called Pontiac Fever can also be triggered by these microbes. As the affected air travels through ducts and enters rooms, people can inhale the vapors and fall ill. Many outbreaks occur during warm or hot weather.

 

Where it Spreads

While any A/C system has the potential to spread Legionnaires’ disease, it tends to cause more problems in large buildings containing numerous people. They include major medical, educational and lodging facilities. Air conditioners are not the only type of equipment capable of spreading it. Whirlpool tubs, showers and fountains have also been responsible for outbreaks.

 

Health Effects

This illness can have severe and potentially fatal symptoms. Individuals often report body pain, fever or chills. In the United States alone, this disease sends over 17,000 people to hospitals annually. Some people are more vulnerable to its effects, such as the elderly. Unfortunately, it can spread in medical centers where patients may already have weakened immune systems.

 

Prevention

To stop this bacterium from developing, it is crucial for HVAC manufacturers, installers and repair personnel to take action. They must prevent air conditioning systems from providing ideal conditions for its growth. To accomplish this, they need to take appropriate preventive steps while planning, installing and maintaining HVAC systems. Building owners must also take adequate precautions.

Basically, Legionnaires’ disease is a serious medical condition that develops when people inhale air contaminated with its bacterium. All HVAC contractors and building owners have a responsibility to fully maintain systems in a way that prevents outbreaks. Please follow us for additional facts on HVAC problems, maintenance, repairs and efficiency.

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