Question 1

Rabbits and rodents are the reservoirs of the causative agent of

Accepted Answer

A)  tularemia.
B)  pertussis.
C)  Legionellosis.
D)  brucellosis.
E)  shigellosis.F) B) and E)
G) C) and D)

Question 2

Pseudomonas is an enteric gram negative rod.

Accepted Answer

A) True 
 B)False

Question 3

Characteristics of chancroid include:

Accepted Answer

A)  sexually transmitted
B)  occurs mostly in the tropics and subtropics
C)  lesion develops at portal of entry
D)  bubo like swelling of the lymph nodes
E)  All of the choices are correct.F) All of the above
G) A) and D)

Question 4

Plague is a quarantinable disease.

Accepted Answer

A) True 
 B)False

Question 5

The gram-negative bacillus associated with abscesses from dog and cat bites or scratches is

Accepted Answer

A)  Salmonella typhimurium.
B)  Yersinia enterocolitica.
C)  Pasteurella multocida.
D)  Brucella suis.
E)  Francisella tularensis.F) C) and D)
G) A) and E)

Question 6

The vaccine for immunity to Haemophilus influenzae serotype b is

Accepted Answer

A)  DtaP.
B)  Pneumovax.
C)  MMR.
D)  Hib.
E)  None of the choices are correct.F) A) and E)
G) None of the above

Question 7

Which is incorrect about Yersinia pestis?

Accepted Answer

A)  exhibit bipolar staining
B)  gram-negative rod
C)  produces coagulase
D)  has a capsule
E)  produces enterotoxinF) None of the above
G) A) and B)

Question 8

Discuss Legionella pneumophila with regard to: a) reservoir, b) virulence, c) transmission, d) types of diseases, and e) prevention.

Accepted Answer

Legionella pneumophila is a bacterium th...

Question 9

Pertussis has the following characteristics, except:

Accepted Answer

A)  pathogen has virulence factors to destroy the action of respiratory cilia.
B)  catarrhal stage has persistent, hacking coughs with "whoops".
C)  early stage resembles a cold with nasal discharge and sneezing.
D)  DTaP immunization will prevent it.
E)  transmission is by respiratory droplets.F) A) and C)
G) A) and E)

Question 10

The Enterobacteriaceae do not produce oxidase compared to the pseudomonads that do produce oxidase.

Accepted Answer

A) True 
 B)False

Question 11

E.coli 0157:H7 characteristics include all the following, except:

Accepted Answer

A)  it only causes occupational illness in people who work with animals.
B)  it is transmitted by ingestion of contaminated, undercooked food, especially hamburger.
C)  it causes a bloody diarrhea.
D)  it is reservoir is cattle intestines.
E)  some cases go on to hemolytic uremic syndrome (HUS)  with possible kidney failure.F) A) and B)
G) A) and C) A

Question 12

Compare and contrast typhoid fever and salmonellosis.

Accepted Answer

Typhoid fever and salmonellosis are both...

Question 13

Salmonella are

Accepted Answer

A)  coliforms.
B)  motile.
C)  gram positive rods.
D)  lactose fermenters.
E)  All of the choices are correct.F) A) and B)
G) A) and C)

Question 14

All of the following are coliforms that cause opportunistic and nosocomial infections, except:

Accepted Answer

A)  Enterobacter.
B)  Citrobacter.
C)  Shigella.
D)  Klebsiella.
E)  Serratia.F) C) and D)
G) A) and E) C

Question 15

Although Burkholderia cepacia could be very useful in bioremediation programs, it is not feasible to use it.Why?

Accepted Answer

A)  Because it can cause opportunistic infections in the respiratory tract.
B)  Because it cannot be cultured in the lab to necessary numbers.
C)  Because it is too expensive at this time to grow it.
D)  It encourages the overgrowth of fungus in the environment, which is not desirable.
E)  It produces a foul odor making it a poor choice for most situations.F) B) and E)
G) A) and E)

Question 16

Which bacteria could be responsible for hemolytic uremic syndrome (HUS) ?

Accepted Answer

A)  Eterotoxigeic strains of E.coli
B)  Salmonella
C)  Shigella dysenteriae
D)  E.coli 0157:H7
E)  Eteroinvasive E.coliF) B) and C)
G) A) and B) D

Question 17

Fever, vomiting, stiff neck, and neurological impairment are symptoms associated with _____.

Accepted Answer

The answer of Fever, vomiting, stiff neck, and neurological impairment...

Question 18

Legionella pneumophila

Accepted Answer

A)  requires special lab growth media.
B)  often lives in close associations with amoebas.
C)  causes fever, cough, and diarrhea.
D)  causes a severe pneumonia.
E)  All of the choices are correct.F) B) and E)
G) B) and D)

Question 19

Which of the following is not correct concerning the plague?

Accepted Answer

A)  Mice, voles, and other rodents are primary long-term reservoirs.
B)  Strains of the plague bacillus are less virulent today as they were in the Middle Ages.
C)  It is transmitted by flea vectors.
D)  Less than 10 cases per year occur in the US.
E)  The etiological agent is Yersinia pestis.F) A) and C)
G) A) and B)

Question 20

Klebsiella has a large _____ that contributes to its ability to cause chronic lung infections.

Accepted Answer

The answer of Klebsiella has a large _____ that contributes...

Exam 20: The Gram-Negative Bacilli of Medical Importance

Rabbits and rodents are the reservoirs of the causative agent of

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Pseudomonas is an enteric gram negative rod.

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Characteristics of chancroid include:

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Plague is a quarantinable disease.

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The gram-negative bacillus associated with abscesses from dog and cat bites or scratches is

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The vaccine for immunity to Haemophilus influenzae serotype b is

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Which is incorrect about Yersinia pestis?

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Discuss Legionella pneumophila with regard to: a) reservoir, b) virulence, c) transmission, d) types of diseases, and e) prevention.

Correct AnswerAnswered by ExamLex AILegionella pneumophila is a bacterium th...View AnswerShow Answer

Pertussis has the following characteristics, except:

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The Enterobacteriaceae do not produce oxidase compared to the pseudomonads that do produce oxidase.

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E.coli 0157:H7 characteristics include all the following, except:

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Compare and contrast typhoid fever and salmonellosis.

Correct AnswerAnswered by ExamLex AITyphoid fever and salmonellosis are both...View AnswerShow Answer

Salmonella are

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All of the following are coliforms that cause opportunistic and nosocomial infections, except:

Correct AnswerverifiedC

Although Burkholderia cepacia could be very useful in bioremediation programs, it is not feasible to use it.Why?

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Which bacteria could be responsible for hemolytic uremic syndrome (HUS) ?

Correct AnswerverifiedD

Fever, vomiting, stiff neck, and neurological impairment are symptoms associated with _____.

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Legionella pneumophila

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Which of the following is not correct concerning the plague?

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Klebsiella has a large _____ that contributes to its ability to cause chronic lung infections.

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Legionella pneumophila is a bacterium th...
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A

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Typhoid fever and salmonellosis are both...
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C

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D

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