Q.1 Which vaccine is recommended at birth in most national immunization schedules?
BCG
MMR
Varicella
HPV
Explanation - BCG vaccine is administered at birth to protect against severe forms of tuberculosis.
Correct answer is: BCG
Q.2 At what age is the first dose of measles-containing vaccine typically given?
At birth
6 weeks
9 months
5 years
Explanation - The first dose of measles vaccine is usually administered at 9 months to provide effective immunity.
Correct answer is: 9 months
Q.3 The DPT vaccine protects against which three diseases?
Dengue, Polio, Tetanus
Diphtheria, Pertussis, Tetanus
Diphtheria, Polio, Tuberculosis
Polio, Pertussis, Tetanus
Explanation - DPT provides protection against diphtheria, pertussis (whooping cough), and tetanus.
Correct answer is: Diphtheria, Pertussis, Tetanus
Q.4 What type of vaccine is the oral polio vaccine (OPV)?
Killed
Live attenuated
Subunit
Toxoid
Explanation - OPV contains live attenuated poliovirus to stimulate immunity.
Correct answer is: Live attenuated
Q.5 Which vaccine is given to adolescent girls to prevent cervical cancer?
Hepatitis B
HPV
Varicella
MMR
Explanation - HPV vaccine prevents infection with human papillomavirus strains that cause cervical cancer.
Correct answer is: HPV
Q.6 A booster dose of tetanus vaccine is recommended every how many years for adults?
3 years
5 years
10 years
15 years
Explanation - Adults should receive a tetanus booster every 10 years for continued protection.
Correct answer is: 10 years
Q.7 Which vaccine should be avoided in pregnancy?
Influenza (inactivated)
Tdap
MMR
Tetanus toxoid
Explanation - MMR is a live vaccine and should be avoided during pregnancy due to risk to the fetus.
Correct answer is: MMR
Q.8 What is the minimum interval between two doses of MMR vaccine?
2 weeks
4 weeks
6 weeks
12 weeks
Explanation - At least 4 weeks should separate two MMR doses to ensure proper immune response.
Correct answer is: 4 weeks
Q.9 The hepatitis B vaccine is given in how many primary doses in infancy?
2
3
4
5
Explanation - The hepatitis B vaccine is administered as a 3-dose primary series for infants.
Correct answer is: 3
Q.10 Which of the following is a contraindication to vaccination?
Mild fever
Mild diarrhea
Severe allergic reaction to a previous dose
Teething
Explanation - A severe allergic reaction (anaphylaxis) is a true contraindication to further doses of the same vaccine.
Correct answer is: Severe allergic reaction to a previous dose
Q.11 What type of vaccine is the influenza nasal spray?
Inactivated
Live attenuated
Subunit
Toxoid
Explanation - The nasal spray influenza vaccine contains live attenuated virus, unlike the inactivated injectable form.
Correct answer is: Live attenuated
Q.12 Which immunization is specifically recommended for travelers to yellow fever endemic areas?
MMR
Yellow fever vaccine
Polio booster
Varicella
Explanation - Yellow fever vaccine is mandatory for travelers to certain endemic countries.
Correct answer is: Yellow fever vaccine
Q.13 Which of the following vaccines is a toxoid vaccine?
Hepatitis B
Diphtheria
MMR
Influenza
Explanation - Diphtheria and tetanus vaccines are toxoids made from inactivated toxins.
Correct answer is: Diphtheria
Q.14 Which age group is recommended for pneumococcal vaccination?
Infants and elderly
Only infants
Only adults
Teenagers
Explanation - Pneumococcal vaccines are given to infants and adults above 65 or with chronic illnesses.
Correct answer is: Infants and elderly
Q.15 What does MMR vaccine protect against?
Mumps, Malaria, Rubella
Measles, Mumps, Rubella
Measles, Mumps, Rotavirus
Mumps, Rubella, Rabies
Explanation - MMR protects against measles, mumps, and rubella.
Correct answer is: Measles, Mumps, Rubella
Q.16 The rotavirus vaccine is given to prevent which condition?
Respiratory infections
Diarrhea in infants
Meningitis
Skin rashes
Explanation - Rotavirus vaccine prevents severe diarrhea and dehydration in infants.
Correct answer is: Diarrhea in infants
Q.17 Which vaccine is given to prevent shingles in older adults?
HPV
Zoster
Influenza
MMR
Explanation - The zoster vaccine helps prevent shingles (herpes zoster) in older adults.
Correct answer is: Zoster
Q.18 What is the preferred site for intramuscular injection in infants?
Deltoid
Gluteal
Anterolateral thigh
Forearm
Explanation - The anterolateral thigh muscle is recommended for IM injections in infants due to muscle mass and safety.
Correct answer is: Anterolateral thigh
Q.19 Which vaccine is contraindicated in immunocompromised patients?
Inactivated influenza
Tetanus toxoid
MMR
Hepatitis B
Explanation - Live vaccines like MMR should be avoided in immunocompromised patients.
Correct answer is: MMR
Q.20 The hepatitis A vaccine is especially recommended for:
Elderly with diabetes
Travelers to endemic regions
Children with asthma
Pregnant women
Explanation - Hepatitis A vaccination is advised for people traveling to areas with poor sanitation and high prevalence.
Correct answer is: Travelers to endemic regions
Q.21 Which vaccine is recommended annually for all age groups?
MMR
Influenza
Hepatitis B
HPV
Explanation - The influenza vaccine is recommended annually due to frequent antigenic changes in the virus.
Correct answer is: Influenza
Q.22 Which route is used for administering the BCG vaccine?
Subcutaneous
Intradermal
Intramuscular
Oral
Explanation - BCG vaccine is given intradermally, usually over the left upper arm.
Correct answer is: Intradermal
Q.23 The primary series of DPT is completed by what age?
6 months
1 year
2 years
5 years
Explanation - The DPT primary series is completed by 6 months with three doses given at 6, 10, and 14 weeks.
Correct answer is: 6 months
Q.24 Which vaccine is used as post-exposure prophylaxis for rabies?
Inactivated polio vaccine
Rabies vaccine
Tetanus toxoid
Varicella vaccine
Explanation - Rabies vaccine is administered as part of post-exposure prophylaxis after an animal bite.
Correct answer is: Rabies vaccine
Q.25 Which of the following is an inactivated vaccine?
BCG
Oral polio vaccine
Inactivated polio vaccine
MMR
Explanation - The inactivated polio vaccine (IPV) contains killed virus, unlike OPV which is live attenuated.
Correct answer is: Inactivated polio vaccine