Question 11 pts

Which statement about giardiasis is true?

Group of answer choices

There have been giardiasis outbreaks all over the United States.Giardiasis is transmitted by mosquito.Ticks are the mode of transmission for giardiasis.Giardiasis is a disease not found outside of Africa.

 

Flag question: Question 2

Question 21 pts

Rabies virus was known as early as:

Group of answer choices

19003500 B.C.1712the 1950s

 

Flag question: Question 3

Question 31 pts

A factor affecting disease emergence is:

Group of answer choices

evolution of bacteria to decrease their exposure to antibiotic concentrations.climate change.globalization.all of the above

 

Flag question: Question 4

Question 41 pts

Smallpox, caused by the Variola virus,

Group of answer choices

has been eradicated.poses a biological weapons threat.has samples stored at institutes in Atlanta and Moscow.all of the above.

 

Flag question: Question 5

Question 51 pts

Which statement about canned food is true?

Group of answer choices

Canned food never contains contaminants.It is difficult to trace the countries where the ingredients in canned food originate.Bacteria are not found in canned food, due to the processing performed before and during the canning process.It is easy to trace and contain the primary source of a pathogen in canned food.

 

Flag question: Question 6

Question 61 pts

From 1994 to 2008, the incidence of Lyme disease in the United States

Group of answer choices

remained constant.fell.is unknown.rose.

 

Flag question: Question 7

Question 71 pts

Screening tests are aimed at benefiting the

Group of answer choices

asymptomatic population.research community.symptomatic population.media.

 

Flag question: Question 8

Question 81 pts

Rehabilitative services following a stroke are an example of

Group of answer choices

tertiary prevention.primary prevention.secondary prevention.none of the above

 

Flag question: Question 9

Question 91 pts

If false-negative results are obtained from a test, this means that the person

Group of answer choices

is disease free but the test result is positive.has the disease and the test says that the person has the disease.is disease free and the test result is negative.has the disease but the test says that the person is disease free or negative.

 

Flag question: Question 10

Question 101 pts

The reliability of a test means that the test will

Group of answer choices

produce no false positives.produce no false negatives.perform the same way time after time.perform in a different way each time it is given.

 

Flag question: Question 11

Question 111 pts

A problem in screening and prevention of diseases is that

Group of answer choices

healthcare providers do not have sufficient time to implement preventive protocols.the media may confuse patients and providers.healthcare providers receive substandard reimbursement rates for preventive services.all of the above

 

Flag question: Question 12

Question 121 pts

Which statement is true about statistical significance and clinical significance?

Group of answer choices

They determine the likelihood ratio.Statistical significance refers to relevance to a scientific endeavor, while clinical significance refers to clinical relevance to patients.They are different terms for the same thing.The clinician is not concerned with significance.

 

Flag question: Question 13

Question 131 pts

Which is an essential requirement to conduct effective work in environmental epidemiology?

Group of answer choices

Appropriate study designAccess to populations of sufficient sizeAdequate support baseAll of the above

 

Flag question: Question 14

Question 141 pts

Exposures to chemical or biological agents occur through:

Group of answer choices

inhalation.oral ingestion.absorption through the skinall of the above

 

Flag question: Question 15

Question 151 pts

When it comes to making policy decisions based on research,

Group of answer choices

epidemiological data provide a sound foundation.if experimental and epidemiological data converge, policy decisions may be scientifically supportable.no data presently exist.only when causation has been proven beyond a doubt can such decisions be made.

 

Flag question: Question 16

Question 161 pts

Where does most dioxin exposure come from?

Group of answer choices

Animal fatDrinking waterDental amalgamsAntiperspirant

 

Flag question: Question 17

Question 171 pts

Impairment of functions, hospitalizations, new cases reported, and accidents all relate to

Group of answer choices

case fatality rates.morbidity.mortality.the “exposome.”

 

Flag question: Question 18

Question 181 pts

A connection between disease and environmental conditions has been made

Group of answer choices

for over 2,000 years.since 1951.since the decoding of the human genome.for at least the last century.

 

Flag question: Question 19

Question 191 pts

In what percentage of U.S. foods have pesticide residues been detected?

Group of answer choices

3%15%50-95%Pesticides are not found in food.

 

Flag question: Question 20

Question 201 pts

Cancer can be caused by environmental exposure to

Group of answer choices

heavy metals.volatile organic compounds (VOCs).asbestos.all of the above