S OILBORNE B ACTERIAL AND V IRAL
D ISEASES
Test Bank for Brock Biology of Microorganism 16th Edition by Michael T.
Madigan
31.1 Multiple Choice Questions
1. Which rickettsial disease is sometimes transmitted by food, such as milk,
from infected domestic animals?
A) ehrlichiosis
B) typhus
C) Q fever
D) Rocky Mountain spotted fever
2. If you were exposed to a sick animal that was found to have negri bodies
in its nervous system in a postmortem examination, how would you be
treated to prevent disease?
A) passive and active immunizati on against rabies
B) antibiotics to treat Lyme disease
C) antiviral medication
D) observation to detect tick or lice bites
3. Which insect functions in the host -to-host transmission of t yphus?
A) rat flea
B) body or head louse
C) dog tick
D) deer tick
, 4. Soldiers or refuges in crowded unsanitary conditions are most susceptible
to which rickettsial disease?
A) Lyme disease
B) typhus
C) Q fever
D) Rocky Mountain spotted fever
5. Which of the following diseases CANNOT easil y be controlled by vector
elimination?
A) yellow fever
B) dengue fever
C) rabies
D) plague
6. Hantaviruses are most commonl y transmitted by _________ of virus-
contaminated rodent _______.
A) inhalation / saliva
B) inhalation / excreta
C) ingestion / saliva
D) ingestion / excreta
7. Of the rickettsias, C. burnetti is unusual because it
A) can be cultured in pure culture outside of a host.
B) is transmitted by a vector.
C) can be cultured in laboratory animals.
D) does not grow intracellularl y.
8. The causative agent of dengue fever is
A) Rickettsia prowazekii.
B) a flavivirus.
C) Borrelia burgdorferi.