Chapter 14 Principles of Disease and Epidemiology
14.1 Multiple-Choice Questions
1) A commensal bacterium
A) does not receive any benefit from its host. B) is beneficial to its host.
C) may also be an opportunistic pathogen.
D) isn't capable of causing disease in its host. E) always causes disease in its host.
Answer: C Section: 14.2
Bloom's Taxonomy: Understanding
ASMcue Outcome: 5.4
Learning Outcome: 14.3
Global Outcome: 2
2) Which of the following statements is TRUE?
A) Both members are harmed in a symbiotic relationship.
B) Members of a symbiotic relationship cannot live without each other. C) A parasite is not
in symbiosis with its host.
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D) Symbiosis always refers to different organisms living together and benefiting from each
other.
E) At least one member must benefit in a symbiotic relationship. Answer: E
Section: 14.2
Bloom's Taxonomy: Understanding
ASMcue Outcome: 5.4
Learning Outcome: 14.3
Global Outcome: 2
3) A healthcare-associated infection (traditionally known as a nosocomial infection) is
A) always present, but is inapparent at the time of hospitalization. B) acquired during the
course of hospitalization.
C) always caused by medical personnel. D) only a result of surgery.
E) always caused by pathogenic bacteria. Answer: B
Section: 14.7
Bloom's Taxonomy: Remembering
ASMcue Outcome: 5.4
Learning Outcome: 14.15
4) The major significance of Robert Koch's work is that
A) microorganisms are present in a diseased animal.
B) diseases can be transmitted from one animal to another. C) microorganisms can be
cultured.
D) microorganisms cause disease.
E) microorganisms are the result of disease. Answer: D
Section: 14.3
Bloom's Taxonomy: Remembering
ASMcue Outcome: 7.4
Learning Outcome: 14.5
Global Outcome: 5
5) Which of the following is NOT a verified exception in the use of Koch's postulates? A)
Some diseases have poorly defined etiologies.
B) Some pathogens can cause several disease conditions.
C) Some human diseases have no other known animal host. D) Some diseases are not caused
by microbes.
E) Some diseases are noncommunicable. Answer: E
Section: 14.3
Bloom's Taxonomy: Understanding
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ASMcue Outcome: 7.4
Learning Outcome: 14.5
Global Outcome: 5
6) Which of the following diseases is NOT spread by droplet infection? A) botulism
B) tuberculosis
C) measles
D) the common cold E) diphtheria Answer: A
Section: 14.6
Bloom's Taxonomy: Remembering
ASMcue Outcome: 5.4
Learning Outcome: 14.14
7) Biological transmission differs from mechanical transmission in that biological
transmission
A) occurs when a pathogen is carried on the feet of an insect. B) involves fomites.
C) involves reproduction of a pathogen in an arthropod vector prior to transmission. D)
requires direct contact.
E) works only with noncommunicable diseases. Answer: C
Section: 14.6
Bloom's Taxonomy: Understanding
ASMcue Outcome: 5.4
Learning Outcome: 14.14
8) Which of the following definitions is INCORRECT?
A) endemic: a disease that is constantly present in a population
B) epidemic: a disease that is constantly present across the world
C) pandemic: a disease that affects a large number of people in the world in a short time
D) sporadic: a disease that affects a population occasionally
E) incidence: number of new cases of a disease
Answer: B Section: 14.4
Bloom's Taxonomy: Remembering
Learning Outcome: 14.7
9) Focal infections initially start out as
A) sepsis.
B) bacteremia.
C) local infections. D) septicemia.
E) systemic infections.
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14.1 Multiple-Choice Questions
1) A commensal bacterium
A) does not receive any benefit from its host. B) is beneficial to its host.
C) may also be an opportunistic pathogen.
D) isn't capable of causing disease in its host. E) always causes disease in its host.
Answer: C Section: 14.2
Bloom's Taxonomy: Understanding
ASMcue Outcome: 5.4
Learning Outcome: 14.3
Global Outcome: 2
2) Which of the following statements is TRUE?
A) Both members are harmed in a symbiotic relationship.
B) Members of a symbiotic relationship cannot live without each other. C) A parasite is not
in symbiosis with its host.
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D) Symbiosis always refers to different organisms living together and benefiting from each
other.
E) At least one member must benefit in a symbiotic relationship. Answer: E
Section: 14.2
Bloom's Taxonomy: Understanding
ASMcue Outcome: 5.4
Learning Outcome: 14.3
Global Outcome: 2
3) A healthcare-associated infection (traditionally known as a nosocomial infection) is
A) always present, but is inapparent at the time of hospitalization. B) acquired during the
course of hospitalization.
C) always caused by medical personnel. D) only a result of surgery.
E) always caused by pathogenic bacteria. Answer: B
Section: 14.7
Bloom's Taxonomy: Remembering
ASMcue Outcome: 5.4
Learning Outcome: 14.15
4) The major significance of Robert Koch's work is that
A) microorganisms are present in a diseased animal.
B) diseases can be transmitted from one animal to another. C) microorganisms can be
cultured.
D) microorganisms cause disease.
E) microorganisms are the result of disease. Answer: D
Section: 14.3
Bloom's Taxonomy: Remembering
ASMcue Outcome: 7.4
Learning Outcome: 14.5
Global Outcome: 5
5) Which of the following is NOT a verified exception in the use of Koch's postulates? A)
Some diseases have poorly defined etiologies.
B) Some pathogens can cause several disease conditions.
C) Some human diseases have no other known animal host. D) Some diseases are not caused
by microbes.
E) Some diseases are noncommunicable. Answer: E
Section: 14.3
Bloom's Taxonomy: Understanding
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ASMcue Outcome: 7.4
Learning Outcome: 14.5
Global Outcome: 5
6) Which of the following diseases is NOT spread by droplet infection? A) botulism
B) tuberculosis
C) measles
D) the common cold E) diphtheria Answer: A
Section: 14.6
Bloom's Taxonomy: Remembering
ASMcue Outcome: 5.4
Learning Outcome: 14.14
7) Biological transmission differs from mechanical transmission in that biological
transmission
A) occurs when a pathogen is carried on the feet of an insect. B) involves fomites.
C) involves reproduction of a pathogen in an arthropod vector prior to transmission. D)
requires direct contact.
E) works only with noncommunicable diseases. Answer: C
Section: 14.6
Bloom's Taxonomy: Understanding
ASMcue Outcome: 5.4
Learning Outcome: 14.14
8) Which of the following definitions is INCORRECT?
A) endemic: a disease that is constantly present in a population
B) epidemic: a disease that is constantly present across the world
C) pandemic: a disease that affects a large number of people in the world in a short time
D) sporadic: a disease that affects a population occasionally
E) incidence: number of new cases of a disease
Answer: B Section: 14.4
Bloom's Taxonomy: Remembering
Learning Outcome: 14.7
9) Focal infections initially start out as
A) sepsis.
B) bacteremia.
C) local infections. D) septicemia.
E) systemic infections.
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