Question 1

Which of the following best describes the difference between active immunization and passive immunotherapy?

Accepted Answer

Active immunization involves the administration of antigens to stimulate an adaptive immune response, while passive immunotherapy involves the transfer of antibodies from an immune individual.

Question 2

Which historical figure is credited with the discovery of the process of vaccination?

Accepted Answer

Edward Jenner

Question 3

What is the main advantage of attenuated (modified live) vaccines compared to inactivated (killed) vaccines?

Accepted Answer

They stimulate a stronger and longer-lasting immune response, often providing contact immunity.

Question 4

A patient with a severe egg allergy should avoid which type of vaccine?

Accepted Answer

Vaccines cultured in chicken eggs

Question 5

Which of the following is a limitation of passive immunotherapy?

Accepted Answer

It can trigger allergic reactions known as serum sickness.

Question 6

Why do toxoid vaccines require multiple doses to be effective?

Accepted Answer

Toxoids possess few antigenic determinants, resulting in a weaker immune response.

Question 7

Which of the following best explains why the introduction of the polio and measles vaccines led to a dramatic decrease in the number of reported cases, as shown in the provided graph?

Accepted Answer

Vaccines stimulate herd immunity, reducing the spread of disease.

Question 8

Which vaccine type is most likely to provide contact immunity?

Accepted Answer

Attenuated (modified live) vaccines

Question 9

A combination vaccine is best described as:

Accepted Answer

A vaccine that simultaneously administers antigens from several pathogens.

Question 10

Which of the following statements about adjuvants is correct?

Accepted Answer

Adjuvants are chemicals added to vaccines to increase effective antigenicity.

Question 11

A patient receives an injection of antiserum after being bitten by a venomous snake. Which type of immunity is this an example of?

Accepted Answer

Passive immunotherapy

Question 12

Which of the following is a reason why some vaccines are not developed for certain pathogens?

Accepted Answer

Vaccine-associated risks discourage investment in new vaccine development.

Question 13

Which of the following vaccines is recommended to be administered orally, according to the CDC immunization schedule?

Accepted Answer

Rotavirus vaccine

Question 14

Which of the following is a potential risk associated with attenuated (modified live) vaccines?

Accepted Answer

They may cause mild infections in healthy individuals.

Question 15

Which of the following statements about the use of recombinant gene technology in vaccine development is correct?

Accepted Answer

It allows for the production of vaccines that are more effective, cheaper, and safer.

Question 16

A child receives the MMR vaccine, which contains attenuated viruses. What is the primary immune response stimulated by this vaccine?

Accepted Answer

Antibody-mediated immunity

Question 17

Which of the following best explains why multiple doses of inactivated vaccines are often required?

Accepted Answer

Inactivated vaccines are rapidly cleared from the body and do not replicate.

Question 18

Which of the following is NOT a limitation of antisera used in passive immunotherapy?

Accepted Answer

Antisera provide long-term protection against future infections.

Question 19

Which of the following statements about vaccine safety is supported by research?

Accepted Answer

Mild toxicity and risk of anaphylactic shock are possible side effects of vaccines.

Question 20

A patient receives a vaccine containing chemically modified toxins to prevent tetanus. Which type of vaccine is this?

Accepted Answer

Toxoid vaccine

Chapter 17: Immunization – Principles and Applications

Study Guide - Practice Questions

Study Guide - Flashcards