Legionella pneumophila

Precautions

Standard Precautions
Standard Precautions

General Information

Pathogen information

Aerobic small Gram negative bacillus

Epidemiology

Reservoir is water. Aerosolization by cooling towers, spas, shower heads, etc.

Occurs in outbreaks.

Person-to-person transmission not documented.

Associated syndromes

  • ¬†Pneumonia (Legionnaires disease)

  • ¬†Pontiac fever (Self-limited febrile illness)

  • ¬†Extrapulmonary infections rare, but include endocarditis

Additional Information

Risk factors include:

  • Outbreak setting

  • Older male

  • Smoker

  • Cardiopulmonary disease

  • Renal disease

  • Immunosuppression

Diagnosed using urine antigen. PCR available by MOC approval.