Test your knowledge – vaccines

  1. Which of the following is correct?

    • 1.
    • 2.
    • 3.
    • 4.
  2. Vaccines are proteins (antigens) that initiate a protective immune response within an animal.

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    • 2.
  3. An animal is not fully immune in the period between the first and second doses of a vaccine.

    • 1.
    • 2.