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People at Risk

Most healthy individuals do not become infected with Legionella bacteria after exposure. People at higher risk of getting sick are:

  • Older people (usually 50 years of age or older)
  • Current or former smokers
  • Those with a chronic lung disease (like COPD or emphysema)
  • Those with a weak immune system from diseases like cancer, diabetes, or kidney failure
  • People who take drugs that suppress (weaken) the immune system (like after a transplant operation or chemotherapy)

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