Question 1

The field of study that specifically examines the occurrence, distribution, and determinants of health and disease in a population is

Accepted Answer

A)  microbiology. 
B)  immunology. 
C)  epidemiology. 
D)  virology. 
A)  microbiology. 
B)  immunology. 
C)  epidemiology. 
D)  virology.

Question 2

ʺTyphoid Maryʺ is an example of a ________, because she was infected by the causative agent for typhoid fever yet was asymptomatic.

Accepted Answer

A)  fomite 
B)  carrier 
C)  vector 
D)  vehicle 
A)  fomite 
B)  carrier 
C)  vector 
D)  vehicle

Question 3

With regards to mode of disease transmission, respiratory pathogens are generally ________, and intestinal pathogens are generally spread by contaminated ________.

Accepted Answer

A)  spread by direct contact / vectors 
B)  spread by indirect contact / carriers 
C)  more transmissible / needles 
D)  airborne / food or water 
A)  spread by direct contact / vectors 
B)  spread by indirect contact / carriers 
C)  more transmissible / needles 
D)  airborne / food or water

Question 4

List and discuss five factors responsible for the emergence of new pathogens or the reemergence of existing pathogens.

Accepted Answer

Any of the following seven are possible

Question 5

Ebola is caused by

Accepted Answer

A)  Streptococcus pneumoniae. 
B)  the Zika virus. 
C)  a filovirus. 
D)  a rhinovirus. 
A)  Streptococcus pneumoniae. 
B)  the Zika virus. 
C)  a filovirus. 
D)  a rhinovirus.

Question 6

Which body site is preferentially infected by foodborne pathogens?

Accepted Answer

A)  gastrointestinal tract 
B)  respiratory tract 
C)  cerebrospinal fluid 
D)  liver 
A)  gastrointestinal tract 
B)  respiratory tract 
C)  cerebrospinal fluid 
D)  liver

Question 7

Emerging infectious disease will likely affect only developing countries in the near future.

Accepted Answer

A) True 
 B)False

Question 8

An endemic disease is constantly present, usually at low incidence, in a population.

Accepted Answer

A) True 
 B)False

Question 9

Reservoirs of infectious disease agents may be either animate or inanimate.

Accepted Answer

A) True 
 B)False

Question 10

A disease present at a constant low level in a population is described as

Accepted Answer

A)  zoonotic. 
B)  common source. 
C)  endemic. 
D)  epidemic. 
A)  zoonotic. 
B)  common source. 
C)  endemic. 
D)  epidemic.

Question 11

A disease showing a relatively slow, progressive rise followed by a gradual decline in incidence is indicative of a(n)

Accepted Answer

A)  host-to-host epidemic. 
B)  common source epidemic. 
C)  biological weapon. 
D)  endemic disease. 
A)  host-to-host epidemic. 
B)  common source epidemic. 
C)  biological weapon. 
D)  endemic disease.

Question 12

People who have a subclinical case of a disease are frequently ________ of a particular disease.

Accepted Answer

A)  fomites 
B)  carriers 
C)  vectors 
D)  vehicles 
A)  fomites 
B)  carriers 
C)  vectors 
D)  vehicles

Question 13

Diseases that are good candidates for eradication have

Accepted Answer

A)  only a human reservoir. 
B)  no asymptomatic phase. 
C)  an environmental reservoir. 
D)  only a human reservoir and no asymptomatic phase. 
A)  only a human reservoir. 
B)  no asymptomatic phase. 
C)  an environmental reservoir. 
D)  only a human reservoir and no asymptomatic phase.

Question 14

In just over a decade of efforts, the World Health Organization (WHO) eradicated smallpox by using worldwide

Accepted Answer

A)  education campaigns. 
B)  destruction of infected domestic animals. 
C)  education campaigns and destruction of infected domestic animals. 
D)  vaccination programs. 
A)  education campaigns. 
B)  destruction of infected domestic animals. 
C)  education campaigns and destruction of infected domestic animals. 
D)  vaccination programs.

Question 15

In the absence of susceptible hosts, Clostridium tetani would still survive in nature.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following diseases would be the easiest to control in a human population?

Accepted Answer

A)  an infectious disease with wild animals as a reservoir 
B)  an infectious disease with humans as the only reservoir 
C)  an infectious disease with domestic cows as the only reservoir 
D)  an infectious disease with several possible reservoirs 
A)  an infectious disease with wild animals as a reservoir 
B)  an infectious disease with humans as the only reservoir 
C)  an infectious disease with domestic cows as the only reservoir 
D)  an infectious disease with several possible reservoirs

Question 17

A ________ is a disease that primarily infects animals but can be transmitted to humans.

Accepted Answer

A)  nosocomial infection 
B)  zoonosis 
C)  vector infection 
D)  mudurane 
A)  nosocomial infection 
B)  zoonosis 
C)  vector infection 
D)  mudurane

Question 18

A large number of cases of a particular disease observed in a relatively short period of time in an area that previously experienced only sporadic cases of the disease is known as a(n)

Accepted Answer

A)  pandemic. 
B)  outbreak. 
C)  endemic. 
D)  zoonosis. 
A)  pandemic. 
B)  outbreak. 
C)  endemic. 
D)  zoonosis.

Question 19

Which disease listed does NOT require quarantine?

Accepted Answer

A)  smallpox 
B)  HIV/AIDS 
C)  plague 
D)  cholera 
A)  smallpox 
B)  HIV/AIDS 
C)  plague 
D)  cholera

Question 20

The onset of a given epidemic is indicated by a sharp rise in the number of cases reported daily over a brief interval. This indicates that the mode of transmission is

Accepted Answer

A)  host to host. 
B)  a common source. 
C)  insect vector. 
D)  mechanical vector. 
A)  host to host. 
B)  a common source. 
C)  insect vector. 
D)  mechanical vector.

Exam 29: Epidemiology

The field of study that specifically examines the occurrence, distribution, and determinants of health and disease in a population is

ʺTyphoid Maryʺ is an example of a ________, because she was infected by the causative agent for typhoid fever yet was asymptomatic.

With regards to mode of disease transmission, respiratory pathogens are generally ________, and intestinal pathogens are generally spread by contaminated ________.

List and discuss five factors responsible for the emergence of new pathogens or the reemergence of existing pathogens.

Ebola is caused by

Which body site is preferentially infected by foodborne pathogens?

Emerging infectious disease will likely affect only developing countries in the near future.

An endemic disease is constantly present, usually at low incidence, in a population.

Reservoirs of infectious disease agents may be either animate or inanimate.

A disease present at a constant low level in a population is described as

A disease showing a relatively slow, progressive rise followed by a gradual decline in incidence is indicative of a(n)

People who have a subclinical case of a disease are frequently ________ of a particular disease.

Diseases that are good candidates for eradication have

In just over a decade of efforts, the World Health Organization (WHO) eradicated smallpox by using worldwide

In the absence of susceptible hosts, Clostridium tetani would still survive in nature.

Which of the following diseases would be the easiest to control in a human population?

A ________ is a disease that primarily infects animals but can be transmitted to humans.

A large number of cases of a particular disease observed in a relatively short period of time in an area that previously experienced only sporadic cases of the disease is known as a(n)

Which disease listed does NOT require quarantine?

The onset of a given epidemic is indicated by a sharp rise in the number of cases reported daily over a brief interval. This indicates that the mode of transmission is

The Microbial World

Microbial Cell Structure and Function

Microbial Metabolism

Molecular Information Flow and Protein Processing

Microbial Growth and Its Control

Microbial Regulatory Systems

Molecular Biology of Microbial Growth

Viruses and Their Replication

Microbial Systems Biology

Viral Genomics, Diversity, and Ecology

Genetics of Bacteria and Archaea

Biotechnology and Synthetic Biology

Microbial Evolution and Systematics

Metabolic Diversity of Microorganisms

Functional Diversity of Microorganisms

Diversity of Bacteria

Diversity of Archaea

Diversity of Microbial Eukarya

Taking the Measure of Microbial Systems

Microbial Ecosystems

Nutrient Cycles

Microbiology of the Built Environment

Microbial Symbioses

Microbial Symbioses with Humans

Microbial Infection and Pathogenesis

Innate Immunity: Broadly Specific Host Defenses

Adaptive Immunity: Highly Specific Host Defenses

Clinical Microbiology and Immunology

Person-to-Person Bacterial and Viral Diseases

Vectorborne and Soilborne Bacterial and Viral Diseases

Waterborne and Foodborne Bacterial and Viral Diseases

Eukaryotic Pathogens: Fungi, Protozoans, and Helminths

Filters

With regards to mode of disease transmission, respiratory pathogens are generally , and intestinal pathogens are generally spread by contaminated .