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Microbiology, 2021

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678 16 • Review Questions<br />

REVIEW QUESTIONS<br />

Multiple Choice<br />

1. Which is the most common type of biological<br />

vector of human disease?<br />

a. viruses<br />

b. bacteria<br />

c. mammals<br />

d. arthropods<br />

2. A mosquito bites a person who subsequently<br />

develops a fever and abdominal rash. What type<br />

of transmission would this be?<br />

a. mechanical vector transmission<br />

b. biological vector transmission<br />

c. direct contact transmission<br />

d. vehicle transmission<br />

3. Cattle are allowed to pasture in a field that<br />

contains the farmhouse well, and the farmer’s<br />

family becomes ill with a gastrointestinal<br />

pathogen after drinking the water. What type of<br />

transmission of infectious agents would this be?<br />

a. biological vector transmission<br />

b. direct contact transmission<br />

c. indirect contact transmission<br />

d. vehicle transmission<br />

4. A blanket from a child with chickenpox is likely<br />

to be contaminated with the virus that causes<br />

chickenpox (Varicella-zoster virus). What is the<br />

blanket called?<br />

a. fomite<br />

b. host<br />

c. pathogen<br />

d. vector<br />

5. Which of the following would NOT be considered<br />

an emerging disease?<br />

a. Ebola hemorrhagic fever<br />

b. West Nile virus fever/encephalitis<br />

c. Zika virus disease<br />

d. Tuberculosis<br />

6. Which of the following would NOT be considered<br />

a reemerging disease?<br />

a. Drug-resistant tuberculosis<br />

b. Drug-resistant gonorrhea<br />

c. Malaria<br />

d. West Nile virus fever/encephalitis<br />

7. Which of the following factors can lead to<br />

reemergence of a disease?<br />

a. A mutation that allows it to infect humans<br />

b. A period of decline in vaccination rates<br />

c. A change in disease reporting procedures<br />

d. Better education on the signs and symptoms<br />

of the disease<br />

8. Why are emerging diseases with very few cases<br />

the focus of intense scrutiny?<br />

a. They tend to be more deadly<br />

b. They are increasing and therefore not<br />

controlled<br />

c. They naturally have higher transmission<br />

rates<br />

d. They occur more in developed countries<br />

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