HEP 444 Module 5 Exam

Question 1

1 / 1 pts

There is ____ in the overall crude death rate in the United States from the year 1900 until 1996.

a definite increase

a slight decrease

hardly any change

a clear decline

Question 2

1 / 1 pts

One of the most important emerging problems with the control of infectious diseases has to do with ____.

deadly parasitic infections

antibiotic resistant viral infections

antibiotic resistant bacterial infections

vaccine resistant viral infections

Question 3

1 / 1 pts

Human immunodeficiency virus (HIV) infects and destroys specific immune cells called CD4 T-cells.

True

False

Question 4

1 / 1 pts

The disease carrier of most concern is known as a(n) ____, which is an infected person who never gets clinically ill, but can transmit the etiologic agent to others.

healthy or passive carrier

pregnant carrier

convalescent carrier

active carrier

Question 5

1 / 1 pts

Match each item with a statement below.

Occurs when the laboratory test for HIV becomes positive

Inanimate objects that may serve as intermediaries for transmission of an infectious disease between an infected person and a susceptible host

An organism that transmits or carries an infectious agent from its reservoir to its host

Question 6

1 / 1 pts

The probability of death due to infectious disease in sub-Saharan Africa is ____%, but only ____% in developed countries, such as the United States.

22; 1.1

35; 10

66; 11

50; 22

Question 7

1 / 1 pts

Measles is no longer considered endemic in many parts of the world.

True

False

Question 8

1 / 1 pts

How many new cases of HIV infection were reported in the United States for the year 2009?

at least 225,000

10,550

just over 36,000

about 100,000

IncorrectQuestion 9

0 / 1 pts

A(n) _________ is a person who is capable of transmitting the disease during and after clinical disease.

Active carrier

Convalescent carrier

Passive carrier

None of the above

Question 10

1 / 1 pts

A single or multi-celled organism that is dependent on their host for their existence is a

Parasite

Prion

Bacteria

Virus

IncorrectQuestion 11

0 / 1 pts

Smallpox is the only disease that has become extinct.

True

False

Question 12

1 / 1 pts

Horizontal transmission is when an infectious agent is transmitted from person to person.

True

False

IncorrectQuestion 13

0 / 1 pts

Chronic diseases have now surpassed infectious diseases for the leading cause of death or disability in developing countries.

True

False

IncorrectQuestion 14

0 / 1 pts

A reservoir is a natural host in which an organism can grow and multiply without causing disease to the host.

True

False

Question 15

1 / 1 pts

Which of the following disease can be transmitted through fomites?

Influenza

Cholera

West Nile Virus

Syphilis

Question 16

1 / 1 pts

One of the most common errors in an outbreak investigation is the failure to ____.

utilize a strict case definition

call the WHO

accurately count cases

vaccinate the population

Question 17

1 / 1 pts

Outbreaks are generally classified as one of two types: ____.

common source and propagated

serious and non-serious

non-deadly and deadly

common and rare

Question 18

1 / 1 pts

In a propagated epidemic with person to person transmission, control measures may include ____.

isolating the elderly from the young

treating the carriers and vaccinating the population at risk

developing an evacuation strategy

hiring more emergency doctors

Question 19

1 / 1 pts

The U.S. Centers for Disease Control and Prevention receives at least ____ reported outbreaks per year in the U.S., although this is usually only the “tip of the iceberg.”

150

400

1,000

40,000

Question 20

1 / 1 pts

Most food-borne illnesses are preventable.

True

False

IncorrectQuestion 21

0 / 1 pts

There are an estimated 75 million food-borne illnesses in the U.S. each year.

True

False

Question 22

1 / 1 pts

Disease outbreaks typically occur in restricted geographical areas close to water.

True

False

Question 23

1 / 1 pts

In an outbreak, a ____ is the quickest study to complete because the investigator usually has access to a group of cases from the outbreak itself.

scientific investigation

random selection study

retrospective design

sample population study

Question 24

1 / 1 pts

An epidemic curve is the plot of time trends in the number of at-risk individuals in a defined population and time period.

True

False

IncorrectQuestion 25

0 / 1 pts

Which of the following major outbreaks killed more than 100 million people in just six months?

Great Influenza Outbreak of 1918

The Black Death

The Plague of Justinian

The First Cholera Pandemic

Question 26

1 / 1 pts

The occurrence of cases of disease in excess of what would normally be expected in a defined community, geographic area, or season is a

Disease Outbreak

Common source outbreak

Propagated outbreak

Major outbreak

Question 27

1 / 1 pts

A person who is missing additional information such as date of onset or geographical location or did not seek medical attention is a ______________.

Possible case

Suspected case

Confirmed case

False case

Question 28

1 / 1 pts

Which of the following is the most common agent responsible for water borne outbreaks?

Norovirus

Giardia

E. coli

Cryptosporidiosis

All of the above

Question 29

1 / 1 pts

Which of the following would not be a part of executing prevention measures?

Document the specific causative agent and disease

Treat carriers

Conduct training programs

Vaccinate susceptible populations

IncorrectQuestion 30

0 / 1 pts

Which of the following is not a likely setting for a community acquired outbreak to occur?

Lakes

Airplanes

Hospitals

Nursing homes

Quiz Score: 23 out of 30

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