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1. Which vaccine type has the advantages of producing live attenuated
long-lasting cellular and humoral immunity and allow-
ing transmission to contacts?
2. Broad-spectrum antibiotics disrupt the microbiome fecal transplant
and provide an opportunity for pathogens such as
Clostridium difficile to grow and cause infection. How
can the microbiome be quickly reestablished to pre-
vent a Clostridium difficile infection?
3. When would it be best to treat a patient with a nar- when the infectious agent
row-spectrum antimicrobial rather than a broad-spec- has been identified as a
trum antimicrobial? gram-negative bacterium
4. Which outcome is a direct result of the increased "leak- edema
iness" of capillaries during inflammation?
5. Which describes a mutualistic relationship? Ruminococcus species us-
ing nutrients from a cow's
diet to digest plant cellu-
lose in the rumen
6. Which viral virulence factor requires adjustments to antigenic variation
the influenza vaccine annually?
7. A bacterial pathogen is found growing in the blood- septicemia
stream of a patient. Which diagnosis is correct for this
finding?
8. Why is desiccation or dehydration an effective method Water concentration de-
of microbial control? creases below what is re-
quired for microbial sur-
vival
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, D311 Microbiology Exam Questions
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9. Which virulence factor produced by Pesudomonas pyocyanin
aeruginosa gives off a fruity odor?
10. A dental hygienist nicked the gum of the patient dur- a focal infection
ing a routine cleaning. A mild infection of the gum was
followed 10 days alter with acute bacterial endocardi-
tis. Which type of infection caused the endocarditis?
11. A student in a lab has just completed an endospore pink vegetative cells with
stain of Bacillus anthracis and realized that heat was clear round areas
not applied during the staining technique. What will
the student see upon microscopic examination of the
slide?
12. Why are diseases like Legionnaires' disease consid- Once a person contracts
ered noncommunicable? this disease, they can not
pass it to another person
13. Why is there a resurgence in whooping cough and more opposition to child-
measles in the United States? hood vaccination
14. What microbial process is used by bacteria and fungi fermentation
to produce many common food products, such as soy
sauce, bread, and yogurt?
15. After oral antibiotic therapy, a patient is diagnosed fungus
with vaginitis. What type of microbe could be causing
this opportunistic infection?
16. Which beneficial role do viruses have in the environ- integrating into plant
ment? genomes to increase
drought tolerance
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