Assessment 1

Question 3

Complete each statement by choosing the correct option from the drop-down list.

1.  Exposure to the first dose of naturally-occurring or vaccine triggers a immune response.
2. Vaccination causes the immune system to produce types of protein called and long-lived that confer lasting immunity.
3. The immune response is more rapid and effective than the response and may eliminate the targeted pathogens before symptoms occur.
4. The immune response to immunization with measles mimics the immune response to the of the measles virus.

Answer

The correct answers are:

  1. Exposure to the first dose of naturally-occurring or vaccine antigens triggers a primary immune response.
  2. Vaccination causes the immune system to produce types of protein called antibodies and long-lived memory cells that confer lasting immunity.
  3. The secondary immune response is more rapid and effective than the primary response and may eliminate the targeted pathogens before symptoms occur.
  4. The immune response to immunization with measles vaccine mimics the immune response to the antigens of the measles virus.