Question 1

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) D) and E)
G) None of the above

Question 2

Which of the following species was once considered so benign that microbiologists used it to trace movements of air currents in hospitals and over cities?

Accepted Answer

A)  Morganella
B)  Providencia
C)  Citrobacter
D)  Serratia
E)  LegionellaF) A) and B)
G) None of the above

Question 3

Which disease involves transmission by aerosolized water from whirlpool spas, air conditioners, cooling towers, and supermarket vegetable misters?

Accepted Answer

A)  Legionellosis
B)  Pertussis
C)  Brucellosis
D)  Plague
E)  Traveler's diarrheaF) All of the above
G) A) and B)

Question 4

Distinguish the four different pathogenic strains of
E.coli with regard to: a) names of the strains, b) virulence factors, and c) symptoms.

Accepted Answer

a) The four different pathogenic strains of E. coli are:
1) Enterotoxigenic E. coli (ETEC)
2) Enteropathogenic E. coli (EPEC)
3) Enterohemorrhagic E. coli (EHEC)
4) Enteroaggregative E. coli (EAEC)

b) Virulence factors:
1) ETEC produces heat-labile and heat-stable enterotoxins, which cause diarrhea.
2) EPEC uses a type III secretion system to inject effector proteins into host cells, leading to the formation of attaching and effacing lesions on the intestinal epithelium.
3) EHEC produces Shiga toxins, which can cause bloody diarrhea and hemolytic uremic syndrome.
4) EAEC produces aggregative adherence fimbriae, which allow the bacteria to adhere to the intestinal mucosa and form biofilms.

c) Symptoms:
1) ETEC causes watery diarrhea, abdominal cramps, and nausea.
2) EPEC can cause watery diarrhea in infants and young children.
3) EHEC can cause bloody diarrhea, abdominal cramps, and in severe cases, hemolytic uremic syndrome.
4) EAEC can cause persistent diarrhea, especially in young children and immunocompromised individuals.

Question 5

Although this bacteria is typically found in soil and water, burn wound patients are susceptible to ___infection.

Accepted Answer

A)  Yersinia pestis
B)  Bordetella pertussis
C)  Pseudomonas
D)  E. coli 0157:H7
E)  ShigellaF) All of the above
G) B) and E)

Question 6

Pseudomonas aeruginosa is

Accepted Answer

A)  found in soil and water.
B)  an opportunist that produces many diverse enzymes.
C)  highly chemical resistant.
D)  motile.
E)  All of the choices are correct.F) C) and D)
G) A) and B)

Question 7

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

Accepted Answer

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

Question 8

Which is not associated with tularemia?

Accepted Answer

A)  listed as a pathogen of concern on the lists of bioterrorism agents
B)  transmitted by arthropod vectors
C)  reservoir can be rabbits and squirrels
D)  symptoms include fever, swollen lymph nodes, ulcerative lesions, conjunctivitis, and pneumonia
E)  in animals, infects the placenta and fetusF) C) and D)
G) All of the above

Question 9

Up to 70% of travel-associated gastrointestinal diseases are caused by

Accepted Answer

A)  enterotoxigenic strains of E. coli.
B)  Salmonella.
C)  Shigella dysenteriae.
D)  E. coli 0157:H7.
E)  enteroinvasive E. coli.F) A) and B)
G) B) and E)

Question 10

The IMViC series of biochemical tests are used to identify the Enterobacteriaceae.

Accepted Answer

A) True 
 B)False

Question 11

Compare and contrast shigellosis and salmonellosis.

Accepted Answer

Shigellosis and salmonellosis are both b...

Question 12

All of the following are correct about salmonelloses except

Accepted Answer

A)  non-typhoidal strains of salmonella are zoonotic in origin.
B)  foods contaminated by rodent feces may cause outbreaks.
C)  outbreaks have been caused by eggs.
D)  drug resistance of salmonella is on the rise.
E)  strains are normal flora in dogs and cats.F) None of the above
G) A) and D) E

Question 13

Describe the characteristics of the Enterobacteriaceae and discuss the difference between the coliforms and noncoliforms in the family.

Accepted Answer

The Enterobacteriaceae family is a large...

Question 14

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) C) and D)
G) B) and E)

Question 15

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...

Question 16

Plague includes:

Accepted Answer

A)  septicemic form - called Black Death.
B)  bubonic form - buboes develop.
C)  pneumonic form - sputum highly contagious.
D)  disease control - control of rodent population.
E)  All of the choices are correct.F) A) and D)
G) None of the above

Question 17

A paroxysmal cough is associated with Legionnaires' disease.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following is normal oral and nasopharyngeal flora but is involved in infective endocarditis in adults who have underlying congenital or rheumatic heart disease?

Accepted Answer

A)  Haemophilus influenzae
B)  Haemophilus aphrophilus
C)  Haemophilus aegyptius
D)  Haemophilus ducreyi
E)  All of the choices are correct.F) A) and E)
G) B) and E)

Question 19

Brucellosis is

Accepted Answer

A)  a zoonosis.
B)  seen in the patient as a fluctuating fever, with headache, muscle pain, and weakness.
C)  associated with pathogen in the blood.
D)  an occupational illness of people that work with animals.
E)  All of the choices are correct.F) A) and E)
G) A) and C)

Question 20

Plague is a quarantinable disease.

Accepted Answer

A) True 
 B)False  True

Exam 20: The Gram-Negative Bacilli of Medical Importance

Pertussis has the following characteristics, except:

Correct Answer
verified

Which of the following species was once considered so benign that microbiologists used it to trace movements of air currents in hospitals and over cities?

Correct Answer
verified

Which disease involves transmission by aerosolized water from whirlpool spas, air conditioners, cooling towers, and supermarket vegetable misters?

Correct Answer
verified

Distinguish the four different pathogenic strains of E.coli with regard to: a) names of the strains, b) virulence factors, and c) symptoms.

Although this bacteria is typically found in soil and water, burn wound patients are susceptible to ___infection.

Correct Answer
verified

Pseudomonas aeruginosa is

Correct Answer
verified

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

Correct Answer
verified

Which is not associated with tularemia?

Correct Answer
verified

Up to 70% of travel-associated gastrointestinal diseases are caused by

Correct Answer
verified

The IMViC series of biochemical tests are used to identify the Enterobacteriaceae.

Correct Answer
verified

Compare and contrast shigellosis and salmonellosis.

Correct Answer
Answered by ExamLex AI
Shigellosis and salmonellosis are both b...
View Answer

All of the following are correct about salmonelloses except

Correct Answer
verified
E

Describe the characteristics of the Enterobacteriaceae and discuss the difference between the coliforms and noncoliforms in the family.

Correct Answer
Answered by ExamLex AI
The Enterobacteriaceae family is a large...
View Answer

Which is incorrect about Yersinia pestis?

Correct Answer
verified

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

Correct Answer
verified

Plague includes:

Correct Answer
verified

A paroxysmal cough is associated with Legionnaires' disease.

Correct Answer
verified

Which of the following is normal oral and nasopharyngeal flora but is involved in infective endocarditis in adults who have underlying congenital or rheumatic heart disease?

Correct Answer
verified

Brucellosis is

Correct Answer
verified

Plague is a quarantinable disease.

Correct Answer
verified
True

Exam 20: The Gram-Negative Bacilli of Medical Importance

Pertussis has the following characteristics, except:

Correct AnswerverifiedShow Answer

Which of the following species was once considered so benign that microbiologists used it to trace movements of air currents in hospitals and over cities?

Correct AnswerverifiedShow Answer

Which disease involves transmission by aerosolized water from whirlpool spas, air conditioners, cooling towers, and supermarket vegetable misters?

Correct AnswerverifiedShow Answer

Distinguish the four different pathogenic strains of E.coli with regard to: a) names of the strains, b) virulence factors, and c) symptoms.

Although this bacteria is typically found in soil and water, burn wound patients are susceptible to ___infection.

Correct AnswerverifiedShow Answer

Pseudomonas aeruginosa is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which is not associated with tularemia?

Correct AnswerverifiedShow Answer

Up to 70% of travel-associated gastrointestinal diseases are caused by

Correct AnswerverifiedShow Answer

The IMViC series of biochemical tests are used to identify the Enterobacteriaceae.

Correct AnswerverifiedShow Answer

Compare and contrast shigellosis and salmonellosis.

Correct AnswerAnswered by ExamLex AIShigellosis and salmonellosis are both b...View AnswerShow Answer

All of the following are correct about salmonelloses except

Correct AnswerverifiedE

Describe the characteristics of the Enterobacteriaceae and discuss the difference between the coliforms and noncoliforms in the family.

Correct AnswerAnswered by ExamLex AIThe Enterobacteriaceae family is a large...View AnswerShow Answer

Which is incorrect about Yersinia pestis?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Plague includes:

Correct AnswerverifiedShow Answer

A paroxysmal cough is associated with Legionnaires' disease.

Correct AnswerverifiedShow Answer

Which of the following is normal oral and nasopharyngeal flora but is involved in infective endocarditis in adults who have underlying congenital or rheumatic heart disease?

Correct AnswerverifiedShow Answer

Brucellosis is

Correct AnswerverifiedShow Answer

Plague is a quarantinable disease.

Correct AnswerverifiedTrue

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Correct Answer
Answered by ExamLex AI
Shigellosis and salmonellosis are both b...
View Answer

Correct Answer
verified
E

Correct Answer
Answered by ExamLex AI
The Enterobacteriaceae family is a large...
View Answer

Correct Answer
verified

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True