Question 1

Which of the following diseases is NOT normally spread by a common source?

Accepted Answer

A)  measles 
B)  foodborne diseases 
C)  waterborne diseases 
D)  cholera 
A)  measles 
B)  foodborne diseases 
C)  waterborne diseases 
D)  cholera

Question 2

You are planning a whitewater rafting vacation in Kenya. Based on what you know about microbiology, what precautions should you take to return in the best of health?

Accepted Answer

Caution should be taken to (1) not trans

Question 3

Failure to reach equilibrium with a disease agent could result in extinction for a host species.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following is/are considered (a) direct contact infection(s)?

Accepted Answer

A)  syphilis only 
B)  gonorrhea only 
C)  skin infections only 
D)  syphilis, gonorrhea, and skin infections 
A)  syphilis only 
B)  gonorrhea only 
C)  skin infections only 
D)  syphilis, gonorrhea, and skin infections

Question 5

Most cases of mosquito-transmitted diseases occur in

Accepted Answer

A)  the summer and fall seasons. 
B)  tropical and sub-tropical regions. 
C)  rural areas. 
D)  tropical and sub-tropical regions or during the summer and fall seasons. 
A)  the summer and fall seasons. 
B)  tropical and sub-tropical regions. 
C)  rural areas. 
D)  tropical and sub-tropical regions or during the summer and fall seasons.

Question 6

Epidemiological studies of AIDS suggest that

Accepted Answer

A)  socioeconomic factors may affect infection risk. 
B)  the incidence is increasing in recent years. 
C)  heterosexual women are at lower risk of infection than other women. 
D)  the virus is no longer changing and evolving. 
A)  socioeconomic factors may affect infection risk. 
B)  the incidence is increasing in recent years. 
C)  heterosexual women are at lower risk of infection than other women. 
D)  the virus is no longer changing and evolving.

Question 7

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 8

Which of the following emergence factors has contributed to the HIV/AIDS epidemic?

Accepted Answer

A)  climate change 
B)  rapid pathogen adaptation and change 
C)  increasing travel to endemic areas 
D)  exotic pet and meat trade 
A)  climate change 
B)  rapid pathogen adaptation and change 
C)  increasing travel to endemic areas 
D)  exotic pet and meat trade

Question 9

Many parasites, such as those that cause malaria, use antigenic variation to decrease virulence within a specific host.

Accepted Answer

A) True 
 B)False

Question 10

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 11

Which of the following is NOT a public health measure used to control the transmission of disease?

Accepted Answer

A)  sanitary water and waste disposal methods 
B)  immunization 
C)  forced quarantine 
D)  genetic engineering 
A)  sanitary water and waste disposal methods 
B)  immunization 
C)  forced quarantine 
D)  genetic engineering

Question 12

Which public health measure(s) is/are most effective against pathogens transmitted through common vehicles?

Accepted Answer

A)  water purification 
B)  mosquito control 
C)  food safety regulations 
D)  water purification and food safety regulations 
A)  water purification 
B)  mosquito control 
C)  food safety regulations 
D)  water purification and food safety regulations

Question 13

Disease ________ is measured by the total number of new reported disease cases within a population over a period of time.

Accepted Answer

A)  incidence 
B)  frequency 
C)  morbidity 
D)  prevalence 
A)  incidence 
B)  frequency 
C)  morbidity 
D)  prevalence

Question 14

A disease that is transferred by direct intimate contact with a mortality rate over 90% would be an effective biological weapon.

Accepted Answer

A) True 
 B)False

Question 15

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 16

A nonliving source of an infectious agent that infects a large number of people is called a

Accepted Answer

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

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

The most common vector-borne disease in the United States is

Accepted Answer

A)  influenza A. 
B)  Lyme disease. 
C)  malaria. 
D)  pneumonia. 
A)  influenza A. 
B)  Lyme disease. 
C)  malaria. 
D)  pneumonia.

Question 19

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 20

Diseases that suddenly become more prevalent are referred to as ________ diseases.

Accepted Answer

A)  indirect 
B)  emerging 
C)  vector 
D)  common source 
A)  indirect 
B)  emerging 
C)  vector 
D)  common source

Exam 29: Epidemiology

Which of the following diseases is NOT normally spread by a common source?

You are planning a whitewater rafting vacation in Kenya. Based on what you know about microbiology, what precautions should you take to return in the best of health?

Failure to reach equilibrium with a disease agent could result in extinction for a host species.

Which of the following is/are considered (a) direct contact infection(s)?

Most cases of mosquito-transmitted diseases occur in

Epidemiological studies of AIDS suggest that

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?

Which of the following emergence factors has contributed to the HIV/AIDS epidemic?

Many parasites, such as those that cause malaria, use antigenic variation to decrease virulence within a specific host.

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

Which of the following is NOT a public health measure used to control the transmission of disease?

Which public health measure(s) is/are most effective against pathogens transmitted through common vehicles?

Disease ________ is measured by the total number of new reported disease cases within a population over a period of time.

A disease that is transferred by direct intimate contact with a mortality rate over 90% would be an effective biological weapon.

Which of the following is an example of herd immunity?

A nonliving source of an infectious agent that infects a large number of people is called a

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

The most common vector-borne disease in the United States is

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

Diseases that suddenly become more prevalent are referred to as ________ diseases.

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