Legionella Microbiology

  1. What is the gram stain and shape of Legionella pneumonphila?
    • Gram negative
    • Rods
  2. True/False: legionella is biolfim former
    True
  3. True/false: legionella grows on special agar called BCYE
    True
  4. Legionella stains (well/poorly), usually done with ____ stain.
    Poorly; silver
  5. True/False: Legionella is usually found in air conditioners, water-cooling towers, shower heads, taps, hot tubs, misters
    True
  6. Can Legionella be found in human reservoir and part of our normal microbiota?
    No and no
  7. Can Legionella lead to typical community acquired pneumonia?
    No, they are atypical causes of community acquired pneumonia
  8. True/false: legionella can lead to community-acquired pneumonia and healthcare-associated pneumonia
    True
  9. What is Legionella’s oxygen need?
    Aerobes
  10. True/False: Legionella is facultative intracellular in PMNs
    False; facultative intracellular macrophages
  11. Which symptoms are more predominant with Legionella infections, GI or respiratory?
    GI symptoms more predominant than respiratory symptoms
  12. True/False: Legionella likes warm water
    True
  13. True/False: Legionella don’t stain well, usually seen in micrograph as brown to black against a yellow background
    True
  14. Legionella is _____(fastidious/non-fastidious), and ____(require/not require) special agar.
    Fastidious; require
  15. What is the agar use for Legionella?
    Buffered charcoal yeast extract agar (BCYE)
  16. What are virulence factors for Legionella?
    • Facultative intracellular
    • Biofilm formers
  17. How is Legionella transmitted?
    Aerosols, aspiration
  18. True/false: legionella person-to-person transmission is common
    False; person to person spread is rare with Legionella
  19. Legionellosis pneumonia often affects _____ (immune healthy/ immunocompromised) patients.
    Immunocompromised
  20. How is Legionella diagnosed?
    Urine antigen test and BCYE culture
  21. How to treat Legionella?
    Levolfloxacin (fluoroquinolone)
Author
lykthrnn
ID
345636
Card Set
Legionella Microbiology
Description
Pulmonary Final- Microbiology
Updated