Question 1

Testing the effectiveness of a new drug for anthrax would be best performed as an experimental study.

Accepted Answer

A) True 
 B)False

Question 2

A disease in which the causative agent remains inactive for a time before producing symptoms is referred to as

Accepted Answer

A)   subclinical.
B)   latent.
C)   acute.
D)   subacute.
E)   zoonotic.F) B) and C)
G) A) and D)

Question 3

Figure 14.1  Figure 14.1 shows the incidence of influenza during a typical year. Which letter on the graph indicates the endemic level?

Accepted Answer

A)   a
B)   b
C)   c
D)   d
E)   The answer cannot be determined based on the information provided.F) A) and E)
G) D) and E)

Question 4

A host is not considered diseased until an infection changes oneʹs state of health.

Accepted Answer

A) True 
 B)False  True

Question 5

Which of the following is NOT a predisposing factor of disease?

Accepted Answer

A)   genetic background
B)   occupation
C)   lifestyle
D)   climate
E)   All of these are predisposing factors of disease.F) A) and C)
G) A) and D)

Question 6

The method of transmission of the disease in Situation 14.1 was

Accepted Answer

A)   direct contact.
B)   indirect contact.
C)   vehicle.
D)   vector-borne.
E)   droplet.F) A) and E)
G) B) and D)

Question 7

Transient microbiota differ from normal microbiota in that transient microbiota

Accepted Answer

A)   are always acquired by direct contact.
B)   never cause disease.
C)   are found in a certain location on the host.
D)   are present for a relatively short time.
E)   cause diseases.F) A) and C)
G) A) and D)

Question 8

Focal infections initially start out as

Accepted Answer

A)   local infections.
B)   bacteremia.
C)   systemic infections.
D)   sepsis.
E)   septicemia.F) A) and E)
G) A) and C)

Question 9

When studying the epidemiology of a particular disease, why are retrospective studies commonly undertaken before prospective studies?

Accepted Answer

Retrospective studies are commonly under...

Question 10

A commensal bacterium

Accepted Answer

A)   always causes disease in its host.
B)   is beneficial to its host.
C)   does not receive any benefit from its host.
D)   isnʹt capable of causing disease in its host.
E)   may also be an opportunistic pathogen.F) A) and D)
G) A) and B)

Question 11

In which of the following patterns of disease does the patient experience no signs or symptoms?

Accepted Answer

A)   incubation
B)   prodromal
C)   convalescence
D)   decline
E)   both incubation and convalescenceF) B) and D)
G) None of the above

Question 12

MMWR is a publication by the CDC that reports on only emerging diseases.

Accepted Answer

A) True 
 B)False

Question 13

If a prodromal period exists for a certain disease, it should occur prior to

Accepted Answer

A)   convalescence.
B)   decline.
C)   illness.
D)   incubation.E) None of the above
F) A) and C)

Question 14

Compromised hosts are always suffering from suppressed immune systems.

Accepted Answer

A) True 
 B)False  False

Question 15

Emergence of infectious diseases can be attributed to all of the following EXCEPT

Accepted Answer

A)   antibiotic resistance.
B)   climatic changes.
C)   ease of travel.
D)   new strains of previously known agents.
E)   The emergence of infectious diseases can be attributed to all of these.F) C) and D)
G) A) and B)

Question 16

A nosocomial infection is

Accepted Answer

A)   always caused by pathogenic bacteria.
B)   always caused by medical personnel.
C)   only a result of surgery.
D)   always present, but is inapparent at the time of hospitalization.
E)   acquired during the course of hospitalization.F) A) and B)
G) A) and C)

Question 17

Which of the following definitions is INCORRECT?

Accepted Answer

A)   pandemic: a disease that affects a large number of people in the world in a short time
B)   epidemic: a disease that is endemic across the world
C)   sporadic: a disease that affects a population occasionally
D)   endemic: a disease that is constantly present in a population
E)   incidence: number of new cases of a diseaseF) A) and E)
G) None of the above

Question 18

Which of the following definitions is INCORRECT?

Accepted Answer

A)   inapparent: infection characteristic of a carrier state
B)   primary infection: an initial illness
C)   chronic: a disease that develops slowly and lasts for months
D)   acute: a short-lasting primary infection
E)   secondary infection: a long-lasting illnessF) C) and E)
G) B) and C) E

Question 19

A cold transmitted by a facial tissue is an example of

Accepted Answer

A)   fomite.
B)   droplet transmission.
C)   vector.
D)   vehicle transmission.
E)   direct contact.F) C) and D)
G) None of the above

Question 20

Figure 14.2  In Figure 14.2, when is the prevalence the highest?

Accepted Answer

A)   February
B)   January
C)   July
D)   March
E)   The answer cannot be determined based on the information provided.F) A) and D)
G) A) and C)

Exam 14: Principles of Disease and Epidemiology

Testing the effectiveness of a new drug for anthrax would be best performed as an experimental study.

Correct AnswerverifiedShow Answer

A disease in which the causative agent remains inactive for a time before producing symptoms is referred to as

Correct AnswerverifiedShow Answer

Figure 14.1 Figure 14.1 shows the incidence of influenza during a typical year. Which letter on the graph indicates the endemic level?

Correct AnswerverifiedShow Answer

A host is not considered diseased until an infection changes oneʹs state of health.

Correct AnswerverifiedTrue

Which of the following is NOT a predisposing factor of disease?

Correct AnswerverifiedShow Answer

The method of transmission of the disease in Situation 14.1 was

Correct AnswerverifiedShow Answer

Transient microbiota differ from normal microbiota in that transient microbiota

Correct AnswerverifiedShow Answer

Focal infections initially start out as

Correct AnswerverifiedShow Answer

When studying the epidemiology of a particular disease, why are retrospective studies commonly undertaken before prospective studies?

Correct AnswerAnswered by ExamLex AIRetrospective studies are commonly under...View AnswerShow Answer

A commensal bacterium

Correct AnswerverifiedShow Answer

In which of the following patterns of disease does the patient experience no signs or symptoms?

Correct AnswerverifiedShow Answer

MMWR is a publication by the CDC that reports on only emerging diseases.

Correct AnswerverifiedShow Answer

If a prodromal period exists for a certain disease, it should occur prior to

Correct AnswerverifiedShow Answer

Compromised hosts are always suffering from suppressed immune systems.

Correct AnswerverifiedFalse

Emergence of infectious diseases can be attributed to all of the following EXCEPT

Correct AnswerverifiedShow Answer

A nosocomial infection is

Correct AnswerverifiedShow Answer

Which of the following definitions is INCORRECT?

Correct AnswerverifiedShow Answer

Which of the following definitions is INCORRECT?

Correct AnswerverifiedE

A cold transmitted by a facial tissue is an example of

Correct AnswerverifiedShow Answer

Figure 14.2 In Figure 14.2, when is the prevalence the highest?

Correct AnswerverifiedShow Answer

Correct Answer
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True

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Answered by ExamLex AI
Retrospective studies are commonly under...
View Answer

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False

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E

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