How is Legionella infection transmitted?

Updated: Nov 13, 2018
  • Author: Mobeen H Rathore, MD, CPE, FAAP, FIDSA; Chief Editor: Russell W Steele, MD  more...
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Answer

Transmission occurs by means of aerosolization or aspiration of water contaminated with Legionella organisms. Wounds may become infected after contact with contaminated water. The following systems are linked to transmission of Legionella organisms:

  • Cooling towers

  • Humidifiers

  • Respiratory therapy equipment

  • Whirlpool spas [5]

  • Evaporative condensers

  • Potable water distribution systems (eg, showers, faucets) [1, 6]


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