Nester's Microbiology: A Human Perspective

Denise Anderson, Sarah Salm, Deborah Allen

Chapter 19

Epidemiology - all with Video Answers

Educators

Chapter Questions

Problem 1

Which of the following is an example of a fomite?
a) Table
b) Flea
c) Staphylococcus aureus carrier
d) Water
e) Air

Joanna Quigley

Joanna Quigley

Numerade Educator

Problem 2

Which of the following would be the easiest to eradicate?
a) A pathogen that is common in wild animals but sometimes infects humans
b) A disease that occurs exclusively in humans, always resulting in obvious symptoms
c) A mild disease of humans that often results in no obvious symptoms
d) A pathogen found in marine sediments
e) A pathogen that readily infects both wild animals and humans

Joanna Quigley

Numerade Educator

Problem 3

Which of the following methods of disease transmission is the most difficult to control?
a) Airborne
b) Foodborne
c) Waterborne
d) Vector-borne
e) Direct person to person

Joanna Quigley

Numerade Educator

Problem 4

Which of the following statements is false?
a) A botulism epidemic that results from improperly canned green beans is an example of a common-source outbreak.
b) Droplet nuclei fall quickly to the ground.
c) Congenital syphilis is an example of a disease acquired through vertical transmission.
d) Plague is endemic in the rock squirrel population in parts of the United States.
e) The first case in an outbreak is called the index case.

Joanna Quigley

Numerade Educator

Problem 5

Which of the following statements is false?
a) A disease with a long incubation period might spread extensively before an epidemic is recognized.
b) A person exposed to a low dose of a pathogen might not develop disease.
c) The young and the aged are more likely to develop certain diseases.
d) Malnourished populations are more likely to develop certain diseases.
e) Herd immunity occurs when a population does not engage in a given behavior, such as eating raw fish, that would otherwise increase their risk of disease.

Joanna Quigley

Numerade Educator

Problem 6

The purpose of an analytical study is to
a) identify the person, place, and time of an outbreak.
b) identify risk factors that result in high frequencies of disease.
c) assess the effectiveness of preventive measures.
d) determine the effectiveness of a placebo.
e) None of the above

Joanna Quigley

Numerade Educator

Problem 7

If you and your family all develop infectious diarrhea, the most likely portal of entry for the pathogen was the
a) large intestine.
b) mouth.
c) skin.
d) respiratory tract.
e) nose

Joanna Quigley

Numerade Educator

Problem 8

All of the following are thought to contribute to the emergence of disease except
a) advances in technology.
b) breakdown of public health infrastructure.
c) construction of dams.
d) mass distribution and importation of food.
e) widespread vaccination programs.

Joanna Quigley

Numerade Educator

Problem 9

Which of the following common causes of healthcareassociated infections is an environmental organism that grows readily in nutrient-poor solutions?
a) Enterococcus
b) Escherichia coli
c) Pseudomonas aeruginosa
d) Staphylococcus aureus

Joanna Quigley

Numerade Educator

Problem 10

What is the most common type of nosocomial infection?
a) Bloodstream infection
b) Gastrointestinal infection
c) Pneumonia
d) Surgical wound infection
e) Urinary tract infection

Joanna Quigley

Numerade Educator