Vaccination, HIV and antibiotics Quiz
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5 questions, one answer each
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1. Which of the following gives passive immunity?
- A. A measles vaccine
- B. Antibodies in breast milk
- C. Recovering from chickenpox
- D. A booster vaccination
2. Herd immunity protects unvaccinated people because:
- A. They become immune by osmosis
- B. Vaccines contain antibodies
- C. Memory cells are passed on
- D. Few susceptible people means the pathogen spreads less
3. What is the role of reverse transcriptase in HIV?
- A. It makes DNA from viral RNA
- B. It makes RNA from DNA
- C. It digests the host cell
- D. It makes capsid proteins
4. Antibiotics do not work against HIV because:
- A. HIV is too big
- B. HIV is a bacterium
- C. HIV has no cell wall or metabolism of its own for antibiotics to target
- D. HIV is destroyed by memory cells
5. Which finding would make a vaccine trial less reliable?
- A. A large sample size
- B. Random allocation to groups
- C. A placebo group
- D. Participants chosen because they wanted the vaccine, with no control group