Microbiology Chapter 18 Study Set

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Microbiology
Chapter 18
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1

B. Antibodies

All of the following are generally used in vaccines EXCEPT ___________

2

D. Nucleic acid vaccine

A DNA plasmid encoding a protein antigen from West Nile virus is injected into the muscle cells of a horse. This is an example of a ___________

3

E. Antibody response against these bacterial toxins.

Toxoid vaccines, such as the vaccines against diphtheria and tetanus, elicit an__________.

4

B. Nucleic acid vaccines

What type of vaccine involves host synthesis of viral antigens?

5

E. Subunit vaccine

Purified protein from Bordetella pertussis is used in a _________.

6

D. Attenuated whole-agent vaccine

What type of vaccine is the live, weakened measles virus?

7

B. Direct fluorescent-antibody test

A test used to identify Streptococcus pyogenes in a patient's throat swab is the __________.

8

C. Hemagglutination-inhibition

Patient's serum, influenza virus, and red blood cells are mixed in a tube. what happens if the patient had antibodies against influenza virus?

9

C. Direct agglutination reaction

Which of the following is a test to determine a patient's blood type y mixing the patient's red blood cells with antisera?

10

B. Precipitation reaction

Which of the following is a test to determine the presence of soluble antigens in a patient's saliva?

11

B. Subunit vaccine

A vaccine against HIV proteins made by a genetically engineered vaccinia virus that has infected a eukaryotic cell line is a ______.

12

B. Toxoid vaccine

Inactivated tetanus toxin is a ________.

13

A. B cell with a myeloma cell.

A hybridoma results from a fusion of a ________.

14

D. The patient was near someone who had the disease.

A patient shows the presence of antibodies against diphtheria toxins. Which of the following statements is FALSE?

15

D. Are highly specific and they can be produced in large quantities.

Monoclonal antibodies are used in diagnostic tests and disease treatments because they _________.

16

B. Attenuated whole-agent vaccine.

Live weakened poliovirus can be used directly in an __________.

17

C. Conjugated vaccine

Haemophilus capsule polysaccharide plus diphtheria toxoid is a _________-.

18

A. Enzyme-labeled antibodies against the drug being tested is added

In a direct ELISA test to screen for drugs in a patient's urine, what is the third step in the test process?

19

C. Antigen

Which item is from the patient in a direct ELISA test?

20

A. Indirect ELISA

Which of the following tests is MOST useful in determining the presence of AIDS antibodies?

21

B. They occasionally revert to virulent forms

Which of the following is NOT an advantage of live attenuated vaccine agents?

22

D. The disease had been eradicated in the United States

Which of the following statements about measles is FALSE?

23

D. Detects 95% of the true positive samples and has 10% false positive results

An ELISA for Hepatitis C had 95% sensitivity and 90% specificity. This means that the test ________.

24

E. Precipitation reaction

A reaction between an antibody and soluble antigen-forming lattices is called a __________.

25

A. Agglutination reaction

A reaction between antibody and particulate antigen is called an ________.

26

True

Vaccines are preparations of organisms or fractions of organisms that are used to induce protective immune responses.

27

True

Agglutination tests use particulate antigens, while precipitation tests use soluble antigens.

28

False

In a vaccine preparation, the term "attenuated" means that the agent does NOT replicate.

29

True

Blood typing tests are examples of hemagglutination reactions.

30

True

The home pregnancy test kit is an example of a direct ELISA.