MCQ on Vaccines

A vaccine is a biological drug that is usually given by injection to build or build immunity against a specific disease. Here below we have listed some important MCQ on vaccines. Take a Look…

MCQ on Vaccines

1. Which of the following is the primary purpose of vaccines?
a) To cure diseases
b) To prevent diseases
c) To treat symptoms
d) To boost the immune system
Answer: b) To prevent diseases

Read: NEET MCQ

2. Which of the following is NOT a type of vaccine?
a) mRNA vaccine
b) Inactivated vaccine
c) Antibiotic vaccine
d) Live attenuated vaccine
Answer: c) Antibiotic vaccine

Read: MCQ on Bacteria

3. What does the term “herd immunity” refer to?
a) The immunity developed by individuals in a group after getting vaccinated
b) The resistance of a group to a particular disease due to a majority of individuals being vaccinated or immune
c) The immunity developed by livestock animals
d) The immunity developed by a single individual after receiving a vaccine
Answer: b) The resistance of a group to a particular disease due to a majority of individuals being vaccinated or immune

Read: MCQ on AIDS

4. Which of the following diseases has been eradicated globally through vaccination efforts?
a) Polio
b) Measles
c) Tuberculosis
d) Malaria
Answer: a) Polio

Read: MCQ on Genetic Disorders

5. What is the recommended age for administering the MMR vaccine?
a) 6 months
b) 1 year
c) 2 years
d) 5 years
Answer: b) 1 year

Read: MCQ on Genetic Material

6. Which of the following vaccines requires a booster dose?
a) Tetanus vaccine
b) Hepatitis A vaccine
c) Influenza vaccine
d) Chickenpox vaccine
Answer: a) Tetanus vaccine

Read: MCQ on RNA

7. What is the purpose of an adjuvant in a vaccine?
a) To enhance the flavor of the vaccine
b) To improve vaccine stability
c) To increase vaccine cost
d) To reduce the effectiveness of the vaccine
Answer: b) To improve vaccine stability

Read: Infectious Disease

8. Which of the following is a common side effect of vaccines?
a) Memory loss
b) Severe allergic reactions
c) Hair growth
d) Weight gain
Answer: b) Severe allergic reactions

Read: MCQ on DNA

9. What does the term “vaccine efficacy” refer to?
a) The cost of the vaccine
b) The number of doses required for full protection
c) The ability of a vaccine to prevent disease in a controlled setting (clinical trials)
d) The number of years a vaccine remains effective
Answer: c) The ability of a vaccine to prevent disease in a controlled setting (clinical trials)

Read: MCQ on Antigen

10. Which organization is responsible for recommending vaccination schedules in the United States?
a) World Health Organization (WHO)
b) Food and Drug Administration (FDA)
c) Centers for Disease Control and Prevention (CDC)
d) National Institutes of Health (NIH)
Answer: c) Centers for Disease Control and Prevention (CDC)

Killed or Inactivated vaccines MCQ: 

Certainly! Here are some MCQ on inactivated vaccines along with their answers:

1. Inactivated vaccines are made from:
a) Live, weakened viruses or bacteria
b) Killed or inactivated viruses or bacteria
c) Toxins produced by bacteria
d) Genetically modified organisms
Answer: b) Killed or inactivated viruses or bacteria

Read: MCQ on HIV

2. Which of the following is an example of an inactivated vaccine?
a) MMR vaccine
b) Polio vaccine
c) Measles vaccine
d) HPV vaccine
Answer: b) Polio vaccine

3. Inactivated vaccines stimulate an immune response by:
a) Introducing live pathogens into the body
b) Triggering an inflammatory response
c) Directly attacking pathogens in the body
d) Presenting antigens to the immune system
Answer: d) Presenting antigens to the immune system

4. Inactivated vaccines are typically administered via:
a) Oral ingestion
b) Injection
c) Inhalation
d) Topical application
Answer: b) Injection

5. Which of the following diseases is NOT prevented by an inactivated vaccine?
a) Influenza
b) Hepatitis A
c) Tetanus
d) Chickenpox
Answer: d) Chickenpox

6. Inactivated vaccines are often combined with an adjuvant to:
a) Increase the shelf life of the vaccine
b) Enhance the immune response to the vaccine
c) Decrease the cost of production
d) Improve the taste of the vaccine
Answer: b) Enhance the immune response to the vaccine

7. Inactivated vaccines provide:
a) Lifelong immunity
b) Temporary immunity
c) Immunity only to certain age groups
d) No immunity at all
Answer: b) Temporary immunity

8. Which of the following is a potential disadvantage of inactivated vaccines?
a) They carry a higher risk of severe side effects
b) They require special storage conditions
c) They are not effective against viral diseases
d) They are only suitable for adults
Answer: b) They require special storage conditions

9. Inactivated vaccines are particularly useful for immunocompromised individuals because:
a) They provide stronger and longer-lasting immunity
b) They pose a lower risk of adverse reactions
c) They can be administered orally
d) They do not contain live pathogens
Answer: d) They do not contain live pathogens

10. Which organization is responsible for regulating and approving inactivated vaccines in the United States?
a) World Health Organization (WHO)
b) Food and Drug Administration (FDA)
c) Centers for Disease Control and Prevention (CDC)
d) National Institutes of Health (NIH)
Answer: b) Food and Drug Administration (FDA)

Multiple Choice Questions on Live, Attenuated Vaccines:

Certainly! Here are some MCQ on live-attenuated vaccines along with their answers:

1. Live-attenuated vaccines are made from:
a) Killed or inactivated viruses or bacteria
b) Toxins produced by bacteria
c) Genetically modified organisms
d) Weakened or attenuated viruses or bacteria
Answer: d) Weakened or attenuated viruses or bacteria

2, Which of the following is an example of a live-attenuated vaccine?
a) Influenza vaccine
b) Hepatitis B vaccine
c) MMR vaccine
d) Tetanus vaccine
Answer: c) MMR vaccine

3. Live-attenuated vaccines stimulate an immune response by:
a) Directly attacking pathogens in the body
b) Triggering an inflammatory response
c) Presenting antigens to the immune system
d) Providing pre-formed antibodies
Answer: c) Presenting antigens to the immune system

4. Live-attenuated vaccines are typically administered via:
a) Oral ingestion
b) Injection
c) Inhalation
d) Topical application
Answer: a) Oral ingestion

5. Which of the following diseases is NOT prevented by a live-attenuated vaccine?
a) Measles
b) Polio
c) Yellow fever
d) Tuberculosis
Answer: d) Tuberculosis

6. Live-attenuated vaccines provide:
a) Lifelong immunity
b) Temporary immunity
c) Immunity only to certain age groups
d) No immunity at all
Answer: a) Lifelong immunity

7. Live-attenuated vaccines are typically not recommended for:
a) Healthy individuals
b) Children under 2 years of age
c) Immunocompromised individuals
d) Pregnant women
Answer: c) Immunocompromised individuals

8. Which of the following is a potential disadvantage of live-attenuated vaccines?
a) They carry a higher risk of severe side effects
b) They require special storage conditions
c) They are less effective than inactivated vaccines
d) They cannot induce an immune response
Answer: a) They carry a higher risk of severe side effects

9. Live-attenuated vaccines can protect against:
a) Bacterial infections only
b) Viral infections only
c) Both bacterial and viral infections
d) Fungal infections
Answer: c) Both bacterial and viral infections

10. Which organization is responsible for regulating and approving live-attenuated vaccines in the United States?
a) World Health Organization (WHO)
b) Food and Drug Administration (FDA)
c) Centers for Disease Control and Prevention (CDC)
d) National Institutes of Health (NIH)
Answer: b) Food and Drug Administration (FDA)

MCQ on mRNA vaccines:

Here below we have listed some MCQ on mRNA vaccines along with their answers:

1. mRNA vaccines work by introducing:
a) Live, weakened viruses or bacteria
b) Killed or inactivated viruses or bacteria
c) Messenger RNA molecules
d) Toxins produced by bacteria
Answer: c) Messenger RNA molecules

2. Which of the following is an example of an mRNA vaccine?
a) Influenza vaccine
b) Hepatitis A vaccine
c) MMR vaccine
d) Pfizer-BioNTech COVID-19 vaccine
Answer: d) Pfizer-BioNTech COVID-19 vaccine

3. mRNA vaccines stimulate an immune response by:
a) Directly attacking pathogens in the body
b) Triggering an inflammatory response
c) Presenting antigens to the immune system
d) Providing pre-formed antibodies
Answer: c) Presenting antigens to the immune system

4. mRNA vaccines are typically administered via:
a) Oral ingestion
b) Injection
c) Inhalation
d) Topical application
Answer: b) Injection

5. mRNA vaccines protect against:
a) Bacterial infections only
b) Viral infections only
c) Both bacterial and viral infections
d) Fungal infections
Answer: b) Viral infections only

6. mRNA vaccines require a lipid nanoparticle to:
a) Enhance the immune response
b) Stabilize the mRNA molecules
c) Improve vaccine shelf life
d) Reduce the cost of production
Answer: b) Stabilize the mRNA molecules

7. mRNA vaccines do not alter a person’s:
a) Genetic makeup
b) Blood type
c) Immune system
d) Body temperature
Answer: a) Genetic makeup

8. Which of the following is a potential advantage of mRNA vaccines?
a) They carry a lower risk of side effects
b) They require fewer doses for full protection
c) They can be stored at room temperature
d) They provide lifelong immunity
Answer: b) They require fewer doses for full protection

9. mRNA vaccines have been widely used for the prevention of:
a) Influenza
b) Polio
c) Tuberculosis
d) Malaria
Answer: a) Influenza

MCQ on Subunit and Conjugate Vaccines:

1. Subunit vaccines are made from:
a) Killed or inactivated viruses or bacteria
b) Toxins produced by bacteria
c) Genetically modified organisms
d) Purified antigens or proteins from viruses or bacteria
Answer: d) Purified antigens or proteins from viruses or bacteria

2. Which of the following is an example of a subunit vaccine?
a) Influenza vaccine
b) Polio vaccine
c) MMR vaccine
d) Tetanus vaccine
Answer: a) Influenza vaccine

3. Subunit vaccines stimulate an immune response by:
a) Directly attacking pathogens in the body
b) Triggering an inflammatory response
c) Presenting antigens to the immune system
d) Providing pre-formed antibodies
Answer: c) Presenting antigens to the immune system

4. Subunit vaccines are typically administered via:
a) Oral ingestion
b) Injection
c) Inhalation
d) Topical application
Answer: b) Injection

5. Conjugate vaccines are designed to enhance the immune response against:
a) Viruses only
b) Bacteria only
c) Both viruses and bacteria
d) Fungi only
Answer: b) Bacteria only

6. Conjugate vaccines work by linking:
a) Viral antigens with bacterial toxins
b) Bacterial antigens with viral antigens
c) Bacterial antigens with carrier proteins
d) Carrier proteins with immune cells
Answer: c) Bacterial antigens with carrier proteins

7. Conjugate vaccines are particularly effective in preventing diseases caused by:
a) Bacterial toxins
b) Viral infections
c) Fungal pathogens
d) Bacterial infections in infants and young children
Answer: d) Bacterial infections in infants and young children

8. Which of the following is a potential advantage of subunit and conjugate vaccines?
a) They carry a lower risk of side effects
b) They provide lifelong immunity
c) They require fewer doses for full protection
d) They can be administered orally
Answer: a) They carry a lower risk of side effects

9. Subunit and conjugate vaccines are typically recommended for individuals with:
a) Healthy immune systems
b) Immunocompromised conditions
c) Allergy to certain foods
d) Autoimmune disorders
Answer: b) Immunocompromised conditions

Hope these MCQ on Vaccines will be helpful for you.

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