The Legionnaires disease is a potentially deadly form of pneumonia which can affect anybody, but which principally affects those who are susceptible because of age, illness, smoking and more. It was named like that after a severe outbreak of pneumonia that hit a meeting of the American Legion in the seventies.
It is caused by the bacterium Legionella pneumophila and related bacteria that can be found naturally in environmental water sources such as rivers, lakes and reservoirs, usually in low numbers. As they are commonly found in environmental sources they may also be found in purpose built water systems such as cooling towers, evaporative condensers and whirlpool spas. As a matter of fact, many other species of the organism and mild illnesses other than pneumonia may be caused by those organisms. Thirty four other species have actually been identified. Read more >>
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