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

Which one of the following is NOT a zoonosis?

Accepted Answer

A)  tapeworm 
B)  cat- scratch disease 
C)  rabies 
D)  Hantavirus pulmonary syndrome 
E)  None of the answers is correct; all of these are zoonoses. 
A)  tapeworm 
B)  cat- scratch disease 
C)  rabies 
D)  Hantavirus pulmonary syndrome 
E)  None of the answers is correct; all of these are zoonoses.

Question 3

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

Accepted Answer

A)  convalescence. 
B)  illness. 
C)  incubation. 
D)  decline. 
A)  convalescence. 
B)  illness. 
C)  incubation. 
D)  decline.

Question 4

Focal infections initially start out as

Accepted Answer

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

Question 5

Which of the following statements is FALSE?

Accepted Answer

A)  The USA300 strain accounts for most community- acquired MRSA. 
B)  Antimicrobial therapy for hemodialysis- associated infections increases antibiotic resistance. 
C)  The M in MRSA stands for mannitol. 
D)  The USA100 strain accounts for most hospital- acquired MRSA. 
E)  S. aureus is differentiated from other mannitol+ cocci by the coagulase test. 
A)  The USA300 strain accounts for most community- acquired MRSA. 
B)  Antimicrobial therapy for hemodialysis- associated infections increases antibiotic resistance. 
C)  The M in MRSA stands for mannitol. 
D)  The USA100 strain accounts for most hospital- acquired MRSA. 
E)  S. aureus is differentiated from other mannitol+ cocci by the coagulase test.

Question 6

Which of the following is NOT a verified exception in the use of Koch's postulates?

Accepted Answer

A)  Some pathogens can cause several disease conditions. 
B)  Some human diseases have no other known animal host. 
C)  Some diseases are not caused by microbes. 
D)  Some diseases are noncommunicable. 
E)  Some diseases have poorly defined etiologies. 
A)  Some pathogens can cause several disease conditions. 
B)  Some human diseases have no other known animal host. 
C)  Some diseases are not caused by microbes. 
D)  Some diseases are noncommunicable. 
E)  Some diseases have poorly defined etiologies.

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

One effect of washing regularly with antibacterial agents is the removal of normal microbiota. This can result in

Accepted Answer

A)  fewer diseases. 
B)  no bacterial growth because washing removes their food source. 
C)  normal microbiota returning immediately. 
D)  body odor. 
E)  increased susceptibility to disease. 
A)  fewer diseases. 
B)  no bacterial growth because washing removes their food source. 
C)  normal microbiota returning immediately. 
D)  body odor. 
E)  increased susceptibility to disease.

Question 9

The method of transmission of the disease in Situation 14.1 was

Accepted Answer

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

Question 10

Biological transmission differs from mechanical transmission in that biological transmission

Accepted Answer

A)  requires an arthropod. 
B)  requires direct contact. 
C)  works only with noncommunicable diseases. 
D)  involves specific diseases. 
E)  involves fomites. 
A)  requires an arthropod. 
B)  requires direct contact. 
C)  works only with noncommunicable diseases. 
D)  involves specific diseases. 
E)  involves fomites.

Question 11

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

Question 12

Which of the following statements about nosocomial infections is FALSE?

Accepted Answer

A)  They may be caused by normal microbiota. 
B)  They may be caused by drug- resistant bacteria. 
C)  They may be caused by opportunists. 
D)  The patient was infected before hospitalization. 
E)  They occur in compromised patients. 
A)  They may be caused by normal microbiota. 
B)  They may be caused by drug- resistant bacteria. 
C)  They may be caused by opportunists. 
D)  The patient was infected before hospitalization. 
E)  They occur in compromised patients.

Question 13

Which of the following is NOT a communicable diseases?

Accepted Answer

A)  typhoid fever 
B)  malaria 
C)  tetanus 
D)  tuberculosis 
E)  AIDS 
A)  typhoid fever 
B)  malaria 
C)  tetanus 
D)  tuberculosis 
E)  AIDS

Question 14

Koch observed Bacillus anthracis multiplying in the blood of cattle. What is this condition called?

Accepted Answer

A)  local infection 
B)  systemic infection 
C)  bacteremia 
D)  septicemia 
E)  focal infection 
A)  local infection 
B)  systemic infection 
C)  bacteremia 
D)  septicemia 
E)  focal infection

Question 15

Both normal and transient flora can become opportunistic pathogens.

Accepted Answer

A) True 
 B)False

Question 16

For a particular disease at a specific time period, morbidity rates should always be equal or greater than mortality rates.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following is NOT a reservoir of infection?

Accepted Answer

A)  a hospital 
B)  a sick person 
C)  a healthy person 
D)  a sick animal 
E)  None of the answers is correct; all of these can be reservoirs of infection. 
A)  a hospital 
B)  a sick person 
C)  a healthy person 
D)  a sick animal 
E)  None of the answers is correct; all of these can be reservoirs of infection.

Question 18

A researcher has performed a prospective study on the disease tetanus. To which specific kind of epidemiological study is this referring?

Accepted Answer

A)  case control 
B)  descriptive 
C)  prodromal 
D)  experimental 
E)  analytical 
A)  case control 
B)  descriptive 
C)  prodromal 
D)  experimental 
E)  analytical

Exam 14: Principles of Disease and Epidemiology

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

Which one of the following is NOT a zoonosis?

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

Focal infections initially start out as

Which of the following statements is FALSE?

Which of the following is NOT a verified exception in the use of Koch's postulates?

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

One effect of washing regularly with antibacterial agents is the removal of normal microbiota. This can result in

The method of transmission of the disease in Situation 14.1 was

Biological transmission differs from mechanical transmission in that biological transmission

Transient microbiota differ from normal microbiota in that transient microbiota

Which of the following statements about nosocomial infections is FALSE?

Which of the following is NOT a communicable diseases?

Koch observed Bacillus anthracis multiplying in the blood of cattle. What is this condition called?

Both normal and transient flora can become opportunistic pathogens.

For a particular disease at a specific time period, morbidity rates should always be equal or greater than mortality rates.

Which of the following is NOT a reservoir of infection?

A researcher has performed a prospective study on the disease tetanus. To which specific kind of epidemiological study is this referring?

The Microbial World and You

Chemical Principles

Observing Microorganisms Through a Microscope

Functional Anatomy of Prokaryotic and Eukaryotic Cells

Microbial Metabolism

Microbial Growth

The Control of Microbial Growth

Microbial Genetics

Biotechnology and Recombinant Dna

Classification of Microorganisms

The Prokaryotes: Domains Bacteria and Archaea

The Eukaryotes: Fungi, Algae, Protozoa, and Helminths

Viruses, Viroids, and Prions

Microbial Mechanisms of Pathogenicity

Innate Immunity: Nonspecific Defenses of the Host

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Practical Applications of Immunology

Disorders Associated With the Immune System

Antimicrobial Drugs

Microbial Diseases of the Skin and Eyes

Microbial Diseases of the Nervous System

Microbial Diseases of the Cardiovascular and Lymphatic Systems

Microbial Diseases of the Respiratory System

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Microbial Diseases of the Urinary and Reproductive Systems

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