Question 1

Creating a spot map and reporting rates by county for West Nile virus i

A)

Distribution of disease

B)

Frequency of disease

C)

Determinants of disease

D)

Active surveillance

Question 2

You are working in the epidemiology office at the local health department and have received 7 new lab reports for patients who have norovirus. Your first activity should be t

A)

Notify the local hospital so that they can put staff on call

B)

Conduct active surveillance to find more cases

C)

Call the local health department director

D)

Create a spot map to see if there is a trend

Save

Question 3

An intern for the local hospital has been asked to compile data and statistics about the top ten diseases in the service area separated by subpopulation risk group. They use information from the CDC, state vital statistics and behavioral risk surveys done in the area. The intern is using epidemiology to:

A)

Help search for causes of disease

B)

Help citizens make personal decisions

C)

Assess the community's health

D)

Complete the clinical picture for physicians

Question 4

Epidemiology is a fairly new medical profession requiring the use of microbiology, medical diagnoses and sociology.

True

False

Question 5

Developing guidelines/criteria about which patients coming to the clinic should be tested for influenza is an example of using epidemiology to conduct:

A)

Analytic studies

B)

Public Health surveillance

C)

Policy development

D)

Field investigation

E)

Evaluation

Question 6

Conducting an analysis of patient flow at influenza vaccination sites to determine waiting times for patients is an example of using epidemiology to conduct:

A)

Policy development

B)

Field investigation

C)

Public Health surveillance

D)

Evaluation

E)

Analytic studies

Question 7

A patient who shows up at the Emergency department of the hospital with a headache states that he heard a kid at his school was just diagnosed with meningitis (a swelling of the brain). You have not received any reports of new cases. This new patient in the Emergency department would be considered a:

A)

Best case of meningitis

B)

Probable case of meningitis

C)

Confirmed case of meningitis

D)

Suspect case of meningitis

Question 8

Epidemiologists find new cases with a case definition so that they can count individuals with disease and then...

A)

Implement prevention measures

B)

Establish policies for disease treatment

C)

Compare numbers of cases like gun deaths vs automobile accident deaths

D)

Divide by an appropriate denominator to get disease rates

Question 9

If an epidemiologist is collecting data on cases and focuses on age, family history and Cholesterol level, they are gathering descriptive epidemiology based on:

A)

Person

B)

Place

C)

Time

D)

All three

Save

Question 10

Descriptive epidemiology typically includes:

A)

Source, mode of transmission, mode of exit

B)

Time, Place, Person

C)

John Snow, Robert Koch, and Kenneth Rothman

D)

Agent, host environment

Question 11 (2 points)

The United States Congress authorized a research study in 2000 in order to obtain medical and sociological impacts of war on military members. The Department of Defense enrolled 140,000 subjects over the next 3 years, and will monitor the subject's health until 2020. This study design is a:

A)

Prospective Cohort study

B)

Cross sectional study

C)

Observational study

D)

Case/Control study

Question 12

Between 1948 and 1952, researchers in London selected lung cancer patients in hospital and compared their smoking rates with people who were similar in age in hospital for other medical conditions. This study is an example of a:

A)

Prospective Cohort study

B)

Cross sectional study

C)

Observational study

D)

Case/Control study

Question 13

A number of passengers on a cruise ship from Puerto Rico to the Panama Canal have recently developed a gastrointestinal illness compatible with norovirus (formerly called Norwalk-like virus). Testing for norovirus is not readily available in any nearby island, and the test takes several days even where available. Assuming you are the epidemiologist called on to board the ship and investigate this possible outbreak, your case definition should include, at a minimum:

A)

Suspect cases

B)

Clinical criteria, plus specification of time, place, and person

C)

The nationally agreed standard case definition for disease reporting

D)

Clinical features, plus the exposure(s) you most suspect

Question 14

Which of the following parts of the epidemiological triad is NOT involved when you vaccinate people for meningitis?

A)

Mode of transmission

B)

Agent

C)

Host

D)

Environment

Question 15

A bimodal curve on a histogram (or epidemiological curve) tells the reader all of the following except:

A)

That the disease source has not been eliminated

B)

That the disease source may be intermittent

C)

That the disease is dying out

D)

That the disease may be spread from person to person

Question 16

Cancer can be caused by Benzene, High dose radiation or with genetic mutations. Each of these can cause cancer independently (without the help of anything else). Each of these factors is:

A)

Not necessary NOR sufficient

B)

Necessary AND sufficient

C)

Necessary but not sufficient

D)

Not necessary but sufficient

Save

Question 17

A disease occurs when Agent A is present, but can also occur when agent B is present. However, Agent M ALWAYS occurs prior to the disease, while either agent A or B is present. Agent A is:

A)

Not necessary but sufficient

B)

Necessary but not sufficient

C)

Not necessary NOR sufficient

D)

Necessary AND sufficient

Question 18

The rate at which those who are exposed to a pathogen become infected is referred to as:

A)

Virulence

B)

Severity

C)

Pathogenicity

D)

Infectivity

Question 19

A term that refers to the proportion of people who are infected with a pathogen, who develop disease:

A)

Virulence

B)

Spectrum of disease

C)

Pathogenicity

D)

Infectivity

Question 20

In 2017, hundreds of Salt Lake City teenagers were vaccinated for rabies because their high schools were infested with bats. Even after being warned not to touch the animals, the students played with the bats. Thinking about this infectious process, the bat is considered the:

A)

Vector

B)

Agent

C)

Environment

D)

Host

Question 21

When considering norovirus (typically transmitted through indirect, fomite transmission), which phase of the chain of infection is involved when a hospital employee fails to wash their hands prior to eating lunch?

A)

Portal of exit

B)

Mode of transmission

C)

Portal of entry

D)

None of the above

Question 22

When considering norovirus (typically transmitted through indirect, fomite transmission), which phase of the chain of infection is involved when a stair railing of a hospital is not cleaned daily?

A)

Portal of exit

B)

Mode of transmission

C)

Portal of entry

D)

None of the above

Question 23

Knowing the difference between portal of exit, mode of transmission, and portal of entry for most diseases is not that critical because interventions remain the same regardless of how a disease is spread

True

False

Question 24

In 2006, there were over 800 human cases of West Nile virus in Idaho (the previous year there were 10). Therefore, in 2006, West Nile virus was:

A)

Endemic to Idaho

B)

An Epidemic

C)

Clustered in Idaho

D)

A Pandemic

Question 25

In 2006, there were over 800 human cases of West Nile virus in Idaho (the previous year there were 10). That same year there were significant increases in cases reported in Nicaragua and Spain. By definition, West Nile Virus in 2006 was:

A)

Epidemic

B)

A pandemic

C)

A Public Health Emergency of International Concern

D)

Endemic

Question 26

Herd immunity is:

A)

The threshold at which the probability of two susceptible hosts coming in contact with each other is very low

B)

Improved through policies that allow families to "opt-out" of vaccination programs

C)

Only used when discussing zoonotic diseases (animal diseases)

D)

A false concept

Question 27

The vaccination rate for mumps among college aged students is now lower than 85%. In 2006, there was a multi-state epidemic of mumps on college campuses. What principles of infection prevention could have been used to stop this epidemic?

A)

Ariel spraying for vectors

B)

Quarantine

C)

Antibiotic resistance

D)

Herd Immunity - improving vaccination rates

Question 28

Which measure of central tendency represents the value(s) in a data set that occur most frequently?

A)

Mean

B)

Mode

C)

Median

D)

Standard Deviation

Question 29

Which measure of central tendency has half of the observations below it, and half above it?

A)

Mode

B)

Mean

C)

Median

D)

Standard Deviation

Question 30

Which measure of central tendency is the sum of all observations divided by the number of observations?

A)

Mean

B)

Mode

C)

Median

D)

Sum of Squares

Question 31

Which measure of central tendency can have 2 numbers?

A)

Standard Deviation

B)

Median

C)

Mean

D)

Mode

Question 32

If you have a data set with a range of 18-647 and a median of 315 and a mean of 498, what do you know about your data set?

A)

It is skewed

B)

It is normally distributed

C)

The data was collected poorly

D)

It is interval data

Question 33

The interquartile range is defined as

Question 33 options:

A)

The distance between the mean and 34% of the observations

B)

The distance between the minimum and maximum

C)

The distance between the mean and Q1 and Q3

D)

The distance between Q1 and Q3

Question 34

What central tendency measure is BEST to tell us about the spread of data on NON-normally distributed data sets?

A)

Standard deviation

B)

Range

C)

Mean

D)

Interquartile range

Question 35

What is the range of values for 68% of the observations in a data set if the mean is 156 and the variance is 49?

A)

149-163

B)

It depends on the interquartile values

C)

It depends on the range

D)

107-205