Every year in the United States, between eight and 18,000 people are hospitalized with Legionnaire's disease, the bacteria that causes Legionnaire's disease.

It's natural.

It's naturally found in hot tubs, in decorative fountains and in cooling towers.

Cooling towers air part of the air condition system.

So if the bacteria gets into the towers, that means it can get into the air conditioning.

Legionnaires disease is not spread person to person.

It's spread through the air.

When people come down with Legionnaire's disease, they start out just not feeling well.

They have a headache, their muscles are a key.

And then after that, that's followed by a high fever, sometimes as high as 104 or 105 degrees.

Most people who get this disease developed pneumonia.

Most people recover when they get legionnaires disease, but between five and 30% die.

The people who are most likely to die from Legionnaire's disease are the elderly and people who have underlying medical problems.