Immunization Quiz 2010: Test Your Knowledge on Vaccinations

1. Which vaccine can be given safely during pregnancy?

Measles

Mumps & Rubella

Varicella

Influenza

Influenza vaccine is recommended during pregnancy, offering protection to both the pregnant individual and the developing fetus. This safe practice helps prevent severe flu-related complications during pregnancy.

Explanation

Influenza vaccine is recommended during pregnancy, offering protection to both the pregnant individual and the developing fetus. This safe practice helps prevent severe flu-related complications during pregnancy.

2. Which is true of Hepatitis B immunization?

Selected newborns are to be given the monovalent HBV vaccine.

HBIG may be given on the second week if the mother is later found to be HBsAg(+)

If mother is HBsAg(+), HBV and HBIG must be given within 12 hours after birth

If mother's HBsAg status is unknown, only HBV is given after 12 hours of birth

Administering both HBV and HBIG within 12 hours after birth is crucial when the mother is HBsAg(+) to prevent vertical transmission. This immediate intervention significantly reduces the risk of chronic hepatitis B infection in newborns, offering early protection.

Explanation

Administering both HBV and HBIG within 12 hours after birth is crucial when the mother is HBsAg(+) to prevent vertical transmission. This immediate intervention significantly reduces the risk of chronic hepatitis B infection in newborns, offering early protection.

3. After the HBV birth dose, which one is correct?

The HBV series must be completed using only the monovalent variety.

The second dose is given at 1 or 2 months.

After age 6 weeks, only the monovalent type is to be used.

Infants born to HBsAg(+) mothers must be tested one month after birth.

The second dose of the HBV series is scheduled at 1 or 2 months after the initial birth dose. This timeline ensures a timely and effective immune response, enhancing the child's resistance to hepatitis B.

Explanation

The second dose of the HBV series is scheduled at 1 or 2 months after the initial birth dose. This timeline ensures a timely and effective immune response, enhancing the child's resistance to hepatitis B.

4. How many doses of Varicella vaccine are recommended for adults?

1

2

3

4

Adults require two doses of the Varicella vaccine for optimal immunity. The second dose ensures a robust and sustained defense against chickenpox, reducing the likelihood of breakthrough infections.

Explanation

Adults require two doses of the Varicella vaccine for optimal immunity. The second dose ensures a robust and sustained defense against chickenpox, reducing the likelihood of breakthrough infections.

5. Which one is true of DTaP?

The Diphtheria component is notorious for causing adverse reactions

The final dose in the series is given at 4 to 6 years old

DTaP is used by the DOH as routine public vaccine

The minimum age to start is at birth

The final dose of the DTaP series is administered at 4 to 6 years old. Completing the series at this age ensures sustained protection against diphtheria, tetanus, and pertussis, optimizing the vaccine's effectiveness.

Explanation

The final dose of the DTaP series is administered at 4 to 6 years old. Completing the series at this age ensures sustained protection against diphtheria, tetanus, and pertussis, optimizing the vaccine's effectiveness.

6. Which one is true?

MMR is started at age 6 months

The minimum starting age for Varicella vaccine is 12 months

Trivalent inactivated flu vaccine is started at age 15 months.

Hepatitis A vaccine is given two doses 12 months apart

Administering the Varicella vaccine at a minimum age of 12 months is essential. This ensures that children are developmentally ready for vaccination, providing robust protection against chickenpox.

Explanation

Administering the Varicella vaccine at a minimum age of 12 months is essential. This ensures that children are developmentally ready for vaccination, providing robust protection against chickenpox.

7. Which one is true?

IPV is safer than OPV.

IPV is given immediately after birth.

Two drops of IPV are given P.O.

Third dose of IPV is given at age 3 years.

IPV is considered safer than OPV due to its inactivated nature. Choosing IPV minimizes the risk of vaccine-associated paralytic polio (VAPP), contributing to a safer immunization strategy.

Explanation

IPV is considered safer than OPV due to its inactivated nature. Choosing IPV minimizes the risk of vaccine-associated paralytic polio (VAPP), contributing to a safer immunization strategy.

8. Which one is true of the Rotavirus vaccine?

The minimum age for first administration is 6 weeks old.

The maximum age for the final dose is 12 months and 0 days.

If Rotarix is administered at ages 2 and 4 months, a dose at 6 months is indicated.

The maximum age for the first dose is 16 weeks and 6 days

The minimum age for the first administration of the Rotavirus vaccine is 6 weeks. This guideline prevents early exposure, allowing infants' immune systems to develop adequately before vaccination, reducing the risk of adverse reactions.

Explanation

The minimum age for the first administration of the Rotavirus vaccine is 6 weeks. This guideline prevents early exposure, allowing infants' immune systems to develop adequately before vaccination, reducing the risk of adverse reactions.

9. What is the primary purpose of administering the Rotavirus vaccine to infants?

To prevent bacterial infections

To prevent viral infections

To boost the immune system nonspecifically

To prepare for adult vaccinations

The Rotavirus vaccine is administered to infants primarily to prevent viral infections caused by rotavirus, a common cause of severe diarrhea among young children. The vaccine is given orally in two or three doses, typically starting at two months of age. By immunizing against rotavirus, the vaccine significantly reduces the risk of dehydration and hospitalization associated with rotavirus gastroenteritis in infants and young children. This targeted prevention is crucial for maintaining child health and reducing the burden of this contagious virus.

Explanation

The Rotavirus vaccine is administered to infants primarily to prevent viral infections caused by rotavirus, a common cause of severe diarrhea among young children. The vaccine is given orally in two or three doses, typically starting at two months of age. By immunizing against rotavirus, the vaccine significantly reduces the risk of dehydration and hospitalization associated with rotavirus gastroenteritis in infants and young children. This targeted prevention is crucial for maintaining child health and reducing the burden of this contagious virus.

10. Which vaccine is required to create herd immunity against a bacteria that often resides harmlessly in human nasopharynx but can cause serious diseases like meningitis and pneumonia?

Influenza

Haemophilus influenzae type b (Hib)

Pneumococcal conjugate (PCV13)

Meningococcal

The Pneumococcal conjugate vaccine (PCV13) is essential for creating herd immunity against Streptococcus pneumoniae, a bacterium that can exist harmlessly in the human nasopharynx but is capable of causing severe illnesses such as pneumonia, meningitis, and bacteremia. This vaccine is particularly important for children, as it significantly reduces the incidence of these diseases by preventing the establishment and transmission of virulent pneumococcal strains within the community.

Explanation

The Pneumococcal conjugate vaccine (PCV13) is essential for creating herd immunity against Streptococcus pneumoniae, a bacterium that can exist harmlessly in the human nasopharynx but is capable of causing severe illnesses such as pneumonia, meningitis, and bacteremia. This vaccine is particularly important for children, as it significantly reduces the incidence of these diseases by preventing the establishment and transmission of virulent pneumococcal strains within the community.

Immunization Quiz 2010: Test Your Knowledge On Vaccinations