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Discover Biology, 4th Full Edition | StudySpace

Biology in the News

Unit 1
- 1
- 2
- 3
- Interlude A
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 2
- 4
- 5
- 6
- 7
- 8
- 9
- Interlude B
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 3
- 10
- 11
- 12
- 13
- 14
- 15
- Interlude C
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 4
- 16
- 17
- 18
- 19
- Interlude D
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    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 5
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- Interlude E
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 6
- 31
- 32
- Interlude F
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News
Unit 7
- 33
- 34
- 35
- 36
- 37
- 38
- Interlude G
  - Organize
    - Study Plan
    - Flash Cards
  - Learn
  - Connect
    - Biology in the News

Chapter 28

Chapter 28: Defenses against Disease

What's News Quizzes

Please read this article, Why did Dr. Pritchard infect himself with hookworm larvae?, and answer the following questions.

1. To demonstrate that hookworms do not cause disease.

a) To show that the presence of hookworms could decrease allergic responsiveness of the immune system.
b) To procure attention for his research.
c) To be accepted by the natives of Papua New Guinea

2. What was the first experiment Dr. Pritchard carried out with the people of Papua New Guinea?

a) He measured the weight gain in individuals treated with medicine to remove hookworms.
b) He infected them with hookworms and observed their response to allergens.
c) He compared the number and viability of hookworms in individuals with their levels of allergy-related antibodies.
d) He determined how much immunity the participants had against hookworm invasion.

3. What is the current status of using hookworms for treatment of allergy-related illnesses?

a) Dr. Pritchard’s work has led to the development by a pharmaceutical company of an anti-allergy drug.
b) Governing agencies have not approved any clinical trials related to hookworm treatments.
c) Helminthic therapy is available as an alternative treatment in Mexico.
d) Dr. Pritchard’s original self-inoculation proved it was too harmful to pursue further testing.

4. Since infection from hookworms in substantial numbers, can lead to serious diseases, what treatment may result from this unique research?

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