Question 1

Which of the following best describes passive immunotherapy?

Accepted Answer

Transfer of preformed antibodies from an immune individual or animal

Question 2

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

Accepted Answer

They stimulate a stronger immune response and can provide contact immunity

Question 3

Which vaccine type is most likely to require multiple doses due to possessing few antigenic determinants?

Accepted Answer

Toxoid vaccine

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 NOT a limitation of passive immunotherapy using antisera?

Accepted Answer

Provides protection from subsequent infections

Question 6

What is the process of reducing the virulence of a pathogen for use in a vaccine called?

Accepted Answer

Attenuation

Question 7

Which equation best represents the probability $$P of an $$individual developing anaphylactic shock after vaccination, given the rate $$r$$ and number of doses $$n$$?

Accepted Answer

$$P = r 	imes n$$

Question 8

Which of the following statements about subunit vaccines is correct?

Accepted Answer

They contain antigenic fragments of microbes and often require adjuvants

Question 9

A combination vaccine is best described as:

Accepted Answer

Simultaneous administration of antigens from several pathogens

Question 10

Which of the following is a reason why some diseases are not eradicated despite the availability of vaccines?

Accepted Answer

Many developing nations do not receive vaccines

Question 11

Which vaccine type is most likely to stimulate antibody-mediated immunity against bacterial toxins?

Accepted Answer

Toxoid vaccine

Question 12

Which of the following best explains why inactivated vaccines often require adjuvants?

Accepted Answer

Adjuvants increase effective antigenicity, enhancing immune response

Question 13

Which of the following vaccines is NOT recommended for the general population in the United States?

Accepted Answer

Anthrax

Question 14

Which of the following is a plausible risk associated with immunization?

Accepted Answer

Residual virulence from attenuated viruses

Question 15

Which of the following best describes the role of hybridomas in passive immunotherapy?

Accepted Answer

Hybridomas are used to produce monoclonal antibodies that overcome limitations of antisera

Question 16

Which of the following equations best represents the total number of doses $$D$$ required for full immunity if each dose increases immunity by $$i$$ percent and full immunity is $$100\%$$?

Accepted Answer

$$D = \frac{100}{i}$$

Question 17

Which of the following is a real-world example of an attenuated vaccine?

Accepted Answer

Measles/mumps/rubella (MMR)

Question 18

Which of the following best explains why vaccine-associated risks discourage investment in developing new vaccines?

Accepted Answer

Potential adverse effects can lead to legal and financial liabilities

Question 19

Which of the following is a characteristic of mRNA vaccines?

Accepted Answer

They use recombinant DNA techniques to deliver genetic material encoding antigens

Question 20

Which of the following best describes the effect of vaccine introduction on disease incidence, as shown in epidemiological graphs?

Accepted Answer

A sharp decline in reported cases following vaccine introduction

Immunization and Immune Testing: Principles and Applications

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