- What is the primary purpose of a vaccine?A) To cure diseases
B) To prevent diseases
C) To treat symptoms of diseases
D) To reverse the effects of diseasesAnswer: B) To prevent diseases
- Which type of immunity is provided by vaccines?A) Innate immunity
B) Passive immunity
C) Active immunity
D) Acquired immunityAnswer: C) Active immunity
- Which of the following is a component of most vaccines?A) Live viruses
B) Inactivated viruses or bacteria
C) Antibiotics
D) SteroidsAnswer: B) Inactivated viruses or bacteria
- What does a vaccine stimulate in the immune system?A) The production of antibodies
B) The production of red blood cells
C) The production of insulin
D) The production of histaminesAnswer: A) The production of antibodies
- Which type of vaccine contains weakened (live) pathogens?A) Inactivated vaccine
B) Subunit vaccine
C) Attenuated vaccine
D) Toxoid vaccineAnswer: C) Attenuated vaccine
- Which vaccine is an example of an inactivated vaccine?A) MMR vaccine
B) Polio vaccine (IPV)
C) Measles vaccine
D) Rotavirus vaccineAnswer: B) Polio vaccine (IPV)
- What is the role of adjuvants in vaccines?A) To activate the immune system
B) To improve the taste of the vaccine
C) To strengthen the pathogen
D) To increase the shelf life of vaccinesAnswer: A) To activate the immune system
- What type of vaccine contains fragments of pathogens instead of whole cells or viruses?A) Subunit vaccine
B) Conjugate vaccine
C) Recombinant vaccine
D) Live attenuated vaccineAnswer: A) Subunit vaccine
- Which of the following diseases is primarily prevented by a toxoid vaccine?A) Measles
B) Polio
C) Tetanus
D) InfluenzaAnswer: C) Tetanus
- What is herd immunity?
A) Immunity developed by one individual through vaccination
B) Immunity acquired through natural infection
C) A type of immunity in which a high percentage of the population is vaccinated, protecting the entire community
D) Immunity that is inherited
Answer: C) A type of immunity in which a high percentage of the population is vaccinated, protecting the entire community
- Which type of vaccine is most likely to require multiple doses for full immunity?
A) Live attenuated vaccine
B) Subunit vaccine
C) Inactivated vaccine
D) Recombinant vaccine
Answer: C) Inactivated vaccine
- Which of the following is an example of a recombinant vaccine?
A) Hepatitis B vaccine
B) Yellow fever vaccine
C) MMR vaccine
D) Chickenpox vaccine
Answer: A) Hepatitis B vaccine
- Which part of the immune system is activated by vaccines?
A) Endocrine system
B) Nervous system
C) Immune system
D) Muscular system
Answer: C) Immune system
- Which type of vaccine is most often used for flu prevention?
A) Live attenuated vaccine
B) Inactivated vaccine
C) Subunit vaccine
D) Recombinant vaccine
Answer: B) Inactivated vaccine
- Which type of vaccine is most commonly used for children under the age of 2?
A) Subunit vaccines
B) Live attenuated vaccines
C) Inactivated vaccines
D) Conjugate vaccines
Answer: D) Conjugate vaccines
- What is the primary difference between a live attenuated vaccine and an inactivated vaccine?
A) Live attenuated vaccines contain live pathogens that have been weakened, while inactivated vaccines contain dead pathogens
B) Live attenuated vaccines have no effect on immunity
C) Inactivated vaccines require more doses than live attenuated vaccines
D) Live attenuated vaccines cause more side effects
Answer: A) Live attenuated vaccines contain live pathogens that have been weakened, while inactivated vaccines contain dead pathogens
- Which vaccine is responsible for preventing the disease “smallpox”?
A) Polio vaccine
B) Measles vaccine
C) Smallpox vaccine
D) Tuberculosis vaccine
Answer: C) Smallpox vaccine
- What is the principle behind the concept of “booster shots” in vaccination?
A) They help to provide long-term immunity by stimulating the immune system again
B) They kill any remaining pathogens in the body
C) They treat the disease after infection occurs
D) They provide immediate protection
Answer: A) They help to provide long-term immunity by stimulating the immune system again
- Which of the following vaccines is used to prevent human papillomavirus (HPV)?
A) Hepatitis B vaccine
B) Diphtheria vaccine
C) HPV vaccine
D) Varicella vaccine
Answer: C) HPV vaccine
- Which of the following vaccines is a combination vaccine?
A) DTP (Diphtheria, Tetanus, Pertussis) vaccine
B) Hepatitis A vaccine
C) Influenza vaccine
D) MMR vaccine
Answer: A) DTP (Diphtheria, Tetanus, Pertussis) vaccine
- Which is a characteristic of a recombinant DNA vaccine?
A) It uses genetic engineering to produce antigens
B) It contains live but weakened pathogens
C) It involves no genetic material from the pathogen
D) It requires no adjuvants
Answer: A) It uses genetic engineering to produce antigens
- How do conjugate vaccines work?
A) By inactivating the pathogen
B) By combining a bacterial polysaccharide with a protein
C) By using live pathogens
D) By enhancing immunity with booster shots
Answer: B) By combining a bacterial polysaccharide with a protein
- Which of the following is NOT a benefit of vaccines?
A) Prevention of disease
B) Herd immunity
C) Immunity against all diseases
D) Protection for vulnerable individuals
Answer: C) Immunity against all diseases
- Which of the following is a live attenuated vaccine?
A) Hepatitis B vaccine
B) Measles vaccine
C) Meningococcal vaccine
D) Polio vaccine (IPV)
Answer: B) Measles vaccine
- Which of the following is an example of a subunit vaccine?
A) Hepatitis B vaccine
B) Polio vaccine (OPV)
C) Rotavirus vaccine
D) MMR vaccine
Answer: A) Hepatitis B vaccine
- Which of the following vaccines provides protection against a bacterial infection?
A) Influenza vaccine
B) Diphtheria vaccine
C) MMR vaccine
D) Polio vaccine
Answer: B) Diphtheria vaccine
- What is the mechanism of action for mRNA vaccines?
A) They inject live viruses into the body
B) They introduce messenger RNA that instructs cells to produce antigens
C) They use inactivated pathogens
D) They stimulate the immune system directly without any antigens
Answer: B) They introduce messenger RNA that instructs cells to produce antigens
- Which of the following is NOT a feature of vaccines?
A) Protection against specific pathogens
B) Prevention of transmission of all diseases
C) Stimulation of the immune system
D) Prevention of serious illness
Answer: B) Prevention of transmission of all diseases
- Which vaccine is required for prevention of tuberculosis?
A) DPT vaccine
B) BCG vaccine
C) MMR vaccine
D) Chickenpox vaccine
Answer: B) BCG vaccine
- Which of the following diseases does the polio vaccine protect against?
A) Tuberculosis
B) Polio
C) Measles
D) Smallpox
Answer: B) Polio
