All the following statements concerning Bordetella pertussis are correct, Except:
Anonymous Quiz
35%
the following statements concerning Bordetella pertussis are correct, Except:
46%
Requires prolonged incubation.
11%
Strictly human pathogen.
9%
Extremely small, Gram-negative coccobacilli.
All of the following are true regarding Bordetella pertussis, EXCEPT:
Anonymous Quiz
19%
Fastidious and sensitive to dryness
4%
Strictly human pathogen
15%
Grow on charcoal blood agar
63%
Obligate anaerobic Gram negative cocoobacilli
All of the following are virulence factors of Bordetella pertussis, EXCEPT:
Anonymous Quiz
14%
Pertactin
9%
Pertussis toxin
70%
Polysaccharide capsule
7%
Tracheal cytotoxin
In the diagnosis of whooping cough, the causative microorganism is most likely isolated from:
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91%
Nasopharyngeal swab cultured on Border-Gengou medium
4%
Pus from pharyngeal abscess
0%
Spinal fluid
4%
Urine specimen cultured on CLED medium
As a virulence factor of Bordetella pertussis, filamentous hemagglutinin:
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33%
Required for tracheal colonization
14%
Inhibition of superoxide generation
9%
Induce localized necrosis
44%
Is a disaccharide-tetrapeptide monomeric by-product of peptidoglycan synthesis
The following are true for Bordetella pertussis EXCEPT:
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24%
It leads to invasion of the respiratory mucosa
60%
It grow well on Bordet Gençon agar and shows oxidase negative results in biochemical tests
7%
It is a strict human pathogen
10%
Transmission usually by aerosolized droplets
The clinical course of pertussis typically progresses through three stages:
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5%
Initial, severe, recovery
88%
Catarrhal, paroxysmal, convalescent
5%
Mild, moderate, severe
2%
Prodromal, acute, convalescent
All of the following concerning Brucellae are true, EXCEPT:
Anonymous Quiz
8%
B. abortus and B. canis cause mild infections
10%
Human disease most commonly caused by B. melitensis
65%
Live attenuated vaccine used to prevent neurobrucellosis
18%
Gram-negative coccobacilli, nonmotile and nonencapsulated
All the following statements concerning Brucella melitensis are correct, Except:
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2%
Almost all patients have (intermittent) undulant fever.
15%
Triple combination of doxycycline, rifampicin and cotrimoxazole used successfully to treat neurobruc
10%
Relapse of disease is caused by inadequate therapy.
73%
Exotoxin A is the major virulence factor.
All of the following regarding Brucellosis are true, EXCEPT:
Anonymous Quiz
86%
Live attenuated Brucella abortus vaccine is safe and effective in human
5%
Natural host of Brucella melitensis are goats and sheep
5%
Human brucellosis can be acquired by ingestion of contaminated meat
5%
Brucella are facultative intracellular pathogen
Considering brucellosis caused by B. melitensis, all of the followings are true, EXCEPT:
Anonymous Quiz
68%
Human to human transmission is common by inhalation
14%
There is no effective human vaccine
5%
Fastidious non motile, Gram negative coccobacilli
14%
Sheep and goats are the animal reservoir
All of the following concerning brucellosis are true, EXCEPT:
Anonymous Quiz
9%
Almost all patients have intermittent fever
7%
Natural reservoir of B. abortus are cattles
72%
The infection in first trimester causes abortion in human
13%
Relapse are associated with persistent focus of infection
Most common complication of brucellosis is:
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33%
Osteomyelitis
19%
Endocarditis
30%
Mental fatigue
19%
Epididymitis
Regarding Mediterranean fever:
Anonymous Quiz
46%
Disease mainly affect organs of RES (Reticuloendothelial System)
13%
Penicillin is the drug of choice for treatment
15%
It is characterized by week long relapsing fever
25%
Strong agglutination with OX19 & OX 2 in well felix test confirm the diagnosis
Which pair is matching correctly?
Anonymous Quiz
15%
H. ducreyi / Conjunctivitis
11%
B. melitensis / Strictly anaerobic Relapsing fever
62%
H. influenzae / Satellite phenomenon
11%
B. pertussis / Conjugated vaccine