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17 Cards in this Set

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  • Back
What is the natural habitat of Pseudomonas spp.?
Moist environments - soil, water, plants
How are Pseudomonas infections usually transmitted?
Via water.
What are the Gram stain and morphological characteristics of Pseudomonas spp.?
Gram-negative rods.
What is the leading cause of death in burn patients?
Pseudomonas infection.
What is the primary cause of death in cystic fibrosis patients?
Burkholderia cepacia infection.
Why is Pseudomonas infection a concern in the dental clinic?
The organism can be spread by aerosols generated by handpieces and contaminated water lines to handpieces.
What types of infections are caused by Pseudomonas aeruginosa?
Respiratory
How does algenate (the capsule) enhance the pathogenic potential of Pseudomonas?
Binding to tissues.
Besides its capsule what are some other virulence factors of Pseudomonas?
Pili.
What is typical of antimicrobic treatment of Pseudomonas and Burkholderia?
It must be aggressive, commonly using combinations of antibiotics that are synergistic.
What is the best way to prevent Pseudomonas and Burkholderia infections?
Rigorous cleanliness with attention paid to infection control practices.
What is the etiologic agent of gonorrhea?
Neisseria gonorrhoeae
What are the Gram staining and morphological characteristics of Neisseria?
Gram-negative diplococci (kidney bean shaped).
What types of growth requirements are needed by the pathogenic Neisseria spp.?
Enriched media needed.
What Neisseria species causes meningitis?
Neisseria meningitidis
In what age group do most of infections with Neisseria gonorrhoeae occur?
20 to 24 years of age.
Does immunity develop after infection with N. gonorrhoeae?
No.