Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

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 3

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 4

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 5

An inanimate object that transmits infectious agents between hosts is most appropriately called a

Accepted Answer

A)  fomite. 
B)  carrier. 
C)  vector. 
D)  reservoir. 
A)  fomite. 
B)  carrier. 
C)  vector. 
D)  reservoir.

Question 6

A disease transferred by indirect contact with a high basic reproduction number and mortality would be an effective biological weapon.

Accepted Answer

A) True 
 B)False

Question 7

In 2003,the majority of AIDS deaths occurred in

Accepted Answer

A)  South America. 
B)  North America. 
C)  Europe. 
D)  Sub-Saharan Africa. 
A)  South America. 
B)  North America. 
C)  Europe. 
D)  Sub-Saharan Africa.

Question 8

In the United States and other developed countries,deaths due to infectious diseases are decreasing.

Accepted Answer

A) True 
 B)False

Question 9

When the life cycle of a disease agent is dependent on a single host species,the pathogen can be eradicated.

Accepted Answer

A) True 
 B)False

Question 10

Immunization against endemic diseases is NOT necessary when traveling outside of one's home country or region.

Accepted Answer

A) True 
 B)False

Question 11

Cholera is an example of a pandemic disease that

Accepted Answer

A)  has multiple wild animal reservoirs and is thus difficult to eradicate. 
B)  spreads from a common source and could be controlled with adequate clean water and waste sanitation measures. 
C)  is spread through direct contact and has only a human reservoir. 
D)  has recently emerged due to overcrowding in urban centers. 
A)  has multiple wild animal reservoirs and is thus difficult to eradicate. 
B)  spreads from a common source and could be controlled with adequate clean water and waste sanitation measures. 
C)  is spread through direct contact and has only a human reservoir. 
D)  has recently emerged due to overcrowding in urban centers.

Question 12

What are the five stages of a typical infectious disease? During which stage is the host likely to infect others?

Accepted Answer

Infection occurs when the infectious age

Question 13

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 14

Which of the following are NOT vectors important in disease transmission?

Accepted Answer

A)  fomites 
B)  insects 
C)  ticks 
D)  rodents 
A)  fomites 
B)  insects 
C)  ticks 
D)  rodents

Question 15

Over time,the relationship between a pathogen and a naïve susceptible population tends towards

Accepted Answer

A)  the extinction of the host. 
B)  the extinction of the pathogen. 
C)  a balance between host and pathogen such that both are maintained. 
D)  the extinction of either the host or the pathogen. 
A)  the extinction of the host. 
B)  the extinction of the pathogen. 
C)  a balance between host and pathogen such that both are maintained. 
D)  the extinction of either the host or the pathogen.

Question 16

Which of the following is an example of herd immunity?

Accepted Answer

A)  Brucellosis is no longer found in farm animals in the United States. 
B)  If 70% of the population is immunized against polio, the disease will be essentially absent from the population. 
C)  Federal law requires that all cattle not immune to anthrax be destroyed. 
D)  All farm animals used for food must be immunized against all the common agents of disease that infect humans. 
A)  Brucellosis is no longer found in farm animals in the United States. 
B)  If 70% of the population is immunized against polio, the disease will be essentially absent from the population. 
C)  Federal law requires that all cattle not immune to anthrax be destroyed. 
D)  All farm animals used for food must be immunized against all the common agents of disease that infect humans.

Question 17

To control a disease in a population,100% immunization is necessary.

Accepted Answer

A) True 
 B)False

Question 18

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

Accepted Answer

A) True 
 B)False

Question 19

Which stage of an acute infectious disease occurs between the time the organism begins to grow in the host and the appearance of disease symptoms?

Accepted Answer

A)  acute period 
B)  decline period 
C)  infection 
D)  incubation period 
A)  acute period 
B)  decline period 
C)  infection 
D)  incubation period

Question 20

The incidence of HIV among hemophiliacs and transfusion recipients has remained constant since 1994.

Accepted Answer

A) True 
 B)False

Exam 28: Epidemiology

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

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

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

Which body site is preferentially infected by foodborne pathogens?

An inanimate object that transmits infectious agents between hosts is most appropriately called a

A disease transferred by indirect contact with a high basic reproduction number and mortality would be an effective biological weapon.

In 2003,the majority of AIDS deaths occurred in

In the United States and other developed countries,deaths due to infectious diseases are decreasing.

When the life cycle of a disease agent is dependent on a single host species,the pathogen can be eradicated.

Immunization against endemic diseases is NOT necessary when traveling outside of one's home country or region.

Cholera is an example of a pandemic disease that

What are the five stages of a typical infectious disease? During which stage is the host likely to infect others?

Which disease listed does NOT require quarantine?

Which of the following are NOT vectors important in disease transmission?

Over time,the relationship between a pathogen and a naïve susceptible population tends towards

Which of the following is an example of herd immunity?

To control a disease in a population,100% immunization is necessary.

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

Which stage of an acute infectious disease occurs between the time the organism begins to grow in the host and the appearance of disease symptoms?

The incidence of HIV among hemophiliacs and transfusion recipients has remained constant since 1994.

Microorganisms and Microbiology

Microbial Cell Structure and Function

Microbial Metabolism

Molecular Biology

Microbial Growth and Control

Microbial Genomics

Metabolic Regulation

Viruses and Virology

Viral Genomes and Diversity

Genetics of Bacteria and Archaea

Genetic Engineering and Biotechnology

Microbial Evolution and Systematics

Metabolic Diversity of Microorganisms

Functional Diversity of Bacteria

Diversity of Bacteria

Diversity of Archaea

Diversity of Eukaryotic Microorganisms

Methods in Microbial Ecology

Microbial Ecosystems

Nutrient Cycles

Microbiology of the Built Environment

Microbial Symbioses

Microbial Interactions With Humans

Immunity and Host Defense

Immune Mechanisms

Molecular Immunology

Diagnostic Microbiology

Person-To-Person Bacterial and Viral Diseases

Vectorborne and Soilborne Bacterial and Viral Diseases

Water and Food As Vehicles of Bacterial Diseases

Eukaryotic Pathogens: Fungal and Parasitic Diseases

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