Question 1

Influenza transmitted by an unprotected sneeze is an example of

Accepted Answer

A)   Fomite.
B)   Direct contact.
C)   Vehicle transmission.
D)   Droplet transmission.
E)   Vector.F) A) and B)
G) All of the above

Question 2

Pseudomonas bacteria colonized the bile duct of a patient following his liver transplant surgery. This is an example of a

Accepted Answer

A)   Latent infection.
B)   Nosocomial infection.
C)   Sporadic disease.
D)   Communicable disease.
E)   None of the above.F) C) and E)
G) A) and B)

Question 3

Which one of the following is not a zoonosis?

Accepted Answer

A)   Cat- scratch disease
B)   Tapeworm
C)   Hantavirus pulmonary syndrome
D)   Rabies
E)   None of the aboveF) A) and B)
G) A) and C)

Question 4

The most likely mode of transmission of pneumonic plague between humans is

Accepted Answer

A)   Direct contact.
B)   Vehicle transmission.
C)   Fomite.
D)   Vector.
E)   Droplet transmission.F) A) and B)
G) All of the above

Question 5

All of the following statements about biological transmission are true except

Accepted Answer

A)   The pathogen reproduces in the vector.
B)   The pathogen may require the vector as a host.
C)   The pathogen may enter the host in the vector's feces.
D)   Houseflies are an important vector.
E)   The pathogen may be injected by the bite of the vector.F) C) and D)
G) A) and E)

Question 6

Emergence of infectious diseases can be due to all of the following except

Accepted Answer

A)   Antibiotic resistance.
B)   Travel.
C)   Climatic changes.
D)   Digging up soil.
E)   Microbes trying to cause disease.F) All of the above
G) A) and B)

Question 7

A cold transmitted by a facial tissue is an example of

Accepted Answer

A)   Vehicle transmission
B)   Vector
C)   Fomite
D)   Direct contact
E)   Droplet transmissionF) B) and D)
G) C) and D)

Question 8

Koch's postulates don't apply to all diseases because

Accepted Answer

A)   Some microorganisms can't be cultured in laboratory media.
B)   Some microorganisms can't be observed.
C)   Some microorganisms don't cause the same disease in laboratory animals.
D)   Some microorganisms cause different symptoms under different conditions.
E)   All diseases aren't caused by microorganisms.F) D) and E)
G) C) and D)

Question 9

Figure 14.2
 
-In Figure 14.2, what is the endemic level of rotavirus infections?

Accepted Answer

A)   0%
B)   Approximately 10%
C)   Approximately 20%
D)   35%
E)   The month of JanuaryF) None of the above
G) B) and E) B

Question 10

Legionellosis transmitted by a grocery store mist machine is an example of

Accepted Answer

A)   Fomite.
B)   Vehicle transmission.
C)   Droplet transmission.
D)   Vector.
E)   Direct contact.F) A) and E)
G) B) and C)

Question 11

Which of the following statements is true?

Accepted Answer

A)   Symbiosis refers to different organisms living together and benefiting from each other.
B)   Symbiosis refers to different organisms living together.
C)   Members of a symbiotic relationship cannot live without each other.
D)   At least one member must benefit in a symbiotic relationship.
E)   A parasite is not in symbiosis with its host.F) A) and D)
G) A) and E) B

Question 12

A sexually transmitted disease is an example of

Accepted Answer

A)   Vector.
B)   Direct contact.
C)   Vehicle transmission.
D)   Droplet transmission.
E)   Fomite.F) A) and E)
G) C) and D)

Question 13

Which of the following is a fomite?

Accepted Answer

A)   Insects
B)   Pus
C)   Droplets from a sneeze
D)   Water
E)   A hypodermic needleF) B) and E)
G) C) and E)

Question 14

The major significance of Koch's work was that

Accepted Answer

A)   Diseases can be transmitted from one animal to another.
B)   Microorganisms are the result of disease.
C)   Microorganisms can be cultured.
D)   Microorganisms are present in a diseased animal.
E)   Microorganisms cause disease.F) B) and C)
G) C) and D)

Question 15

Symptoms of disease differ from signs of disease in that symptoms

Accepted Answer

A)   Are changes observed by the physician.
B)   Always occur as part of a syndrome.
C)   Are changes felt by the patient.
D)   Are specific for a particular disease.
E)   None of the above.F) A) and B)
G) A) and C) C

Question 16

Which of the following statements about nosocomial infections is not true?

Accepted Answer

A)   They are caused by normal microbiota.
B)   They are caused by opportunists.
C)   They are caused by drug- resistant bacteria.
D)   They occur in compromised patients.
E)   None of the above.F) A) and D)
G) B) and C)

Question 17

Which of these infections can cause septicemia?

Accepted Answer

A)   Local infection
B)   Focal infection
C)   Septicemia
D)   Bacteremia
E)   Systemic infectionF) B) and C)
G) B) and E)

Question 18

Which of the following definitions is incorrect?

Accepted Answer

A)   Epidemic - fraction of the population having a disease at a specified time
B)   Pandemic - a disease that affects a large number of people in the world in a short time
C)   Endemic - a disease that is constantly present in a population
D)   Sporadic - a disease that affects a population occasionally
E)   None of the aboveF) A) and E)
G) All of the above

Question 19

A needlestick is an example of

Accepted Answer

A)   Direct contact.
B)   Vector.
C)   Droplet transmission.
D)   Vehicle transmission.
E)   Fomite.F) A) and B)
G) B) and D)

Question 20

Mechanical transmission differs from biological transmission in that mechanical transmission

Accepted Answer

A)   Involves fomites.
B)   Doesn't involve specific diseases.
C)   Doesn't require an arthropod.
D)   Requires direct contact.
E)   Doesn't work with noncommunicable diseases.F) C) and D)
G) B) and D)

Exam 14: Principles of Disease and Epidemiology

Influenza transmitted by an unprotected sneeze is an example of

Correct AnswerverifiedShow Answer

Pseudomonas bacteria colonized the bile duct of a patient following his liver transplant surgery. This is an example of a

Correct AnswerverifiedShow Answer

Which one of the following is not a zoonosis?

Correct AnswerverifiedShow Answer

The most likely mode of transmission of pneumonic plague between humans is

Correct AnswerverifiedShow Answer

All of the following statements about biological transmission are true except

Correct AnswerverifiedShow Answer

Emergence of infectious diseases can be due to all of the following except

Correct AnswerverifiedShow Answer

A cold transmitted by a facial tissue is an example of

Correct AnswerverifiedShow Answer

Koch's postulates don't apply to all diseases because

Correct AnswerverifiedShow Answer

Figure 14.2 -In Figure 14.2, what is the endemic level of rotavirus infections?

Correct AnswerverifiedB

Legionellosis transmitted by a grocery store mist machine is an example of

Correct AnswerverifiedShow Answer

Which of the following statements is true?

Correct AnswerverifiedB

A sexually transmitted disease is an example of

Correct AnswerverifiedShow Answer

Which of the following is a fomite?

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The major significance of Koch's work was that

Correct AnswerverifiedShow Answer

Symptoms of disease differ from signs of disease in that symptoms

Correct AnswerverifiedC

Which of the following statements about nosocomial infections is not true?

Correct AnswerverifiedShow Answer

Which of these infections can cause septicemia?

Correct AnswerverifiedShow Answer

Which of the following definitions is incorrect?

Correct AnswerverifiedShow Answer

A needlestick is an example of

Correct AnswerverifiedShow Answer

Mechanical transmission differs from biological transmission in that mechanical transmission

Correct AnswerverifiedShow Answer

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B

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B

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C

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