Microbiology Final Lecture Exam Chapter 19 An epidemic disease is one that
- breaks out in explosive proportions in a population.
- remains dormant in populations.
- follows a primary infection.
- is transmitted solely by arthropods.
(ANS- A.
A scientist who studies the pattern of disease in a community and attempts to locate its source is called a(n)
- pathologist.
- epidemiologist.
- microbiologist.
- infectiologist.
(ANS- B.
What specific job is this person fulfilling? She isolates the cause of an outbreak, prevents its spread, and gets out public health messages to people who could have been exposed.
- Microbiologist
- Biologist
- Epidemiologist
- Public health inspector
(ANS- C. 1 / 3
The relationship between the body and its microbiota
- usually leads to parasitism
- is never beneficial to either.
- generally has a negative tone.
- is an example of a symbiosis.
(ANS- D.
Which of the following is considered a new emerging infectious disease?
- polio
B. SARS
- smallpox
- cholera
(ANS- B.
Which of the following is an example of indigenous microbiota?
- Escherichia coli in the intestines
- Candida albicans in the intestines
- Lactobacillus in the human vagina
- All of the above are correct
(ANS- D.
Normal flora may be found in all the following environments except
- the blood.
- the pharynx.
- the vagina.
- the upper respiratory tract. (ANS- A. 2 / 3
The virulence of an organism may be enhanced by all the following except
- its ability to produce exotoxins.
- its ability to overcome body defenses.
- its ability to spread through the tissues.
- its ability to grow on artificial laboratory media.
(ANS- D.
Certain microorganisms inhabit parts of the body without causing symptoms of disease. These organisms collectively are referred to as
- the microbiota
- symbiotes.
- the avirulent pathogens
- opportunists.
(ANS- A.
The degree to which an organism is able to cause disease is referred to as its
- chronicity.
- pathogenicity.
- acme.
- communicability.
(ANS- B..
. Pathogenicity islands refer to
- pathogens in biofilm aggregations.
- clusters of genes responsible for virulence.
- areas of the body prone to infection.
- / 3