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