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Childhood Immunisation MCQ - Practice Questions with Answers

Solve 13 Childhood Immunisation questions for RAS/RPSC preparation.

Practice questions

Q1Which answer best explains why missed routine immunization is treated as a serious child-health risk rather than only a record-keeping gap?

A It can leave the child unprotected against diseases such as diphtheria, pertussis, tetanus, polio, measles-rubella, hepatitis B, Hib-related disease, rotavirus diarrhoea and pneumococcal disease
B It affects only the individual child and has no relevance to community transmission
C It mainly delays growth monitoring but does not change the child's risk of vaccine-preventable infection
D It primarily increases the risk of scurvy and rickets, which are the main diseases covered by UIP vaccines
Explanation

The public-health importance of immunization comes from preventing severe vaccine-preventable diseases, not merely completing a card. UIP targets diseases including diphtheria, pertussis, tetanus, polio, measles-rubella, hepatitis B, Hib-related disease, rotavirus diarrhoea and pneumococcal disease; non-immunization leaves avoidable susceptibility.

Q2During a review meeting, a supervisor argues that every district must report JE-1 and JE-2 coverage in the same way as MR-1 and MR-2. Which response is most consistent with UIP guidance?

A JE-1 is given at birth and JE-2 is given at 6 weeks, so all districts must report both by 2 months
B JE vaccination is included only where applicable, typically in identified endemic districts, while MR doses are part of the routine child schedule more broadly
C JE vaccine is used only for pregnant women and has no child schedule entry
D JE vaccine is a replacement for MR vaccine in areas where measles has been eliminated
Explanation

A hard schedule question often turns on the footnote. MR-1 and MR-2 are routine child doses, but JE-1 and JE-2 carry the 'where applicable' condition and are used in identified endemic/high-burden districts. Treating JE as mandatory in every district would create a false denominator and wrong due-list interpretation.

Q3A 7-month-old child has received BCG, OPV and MR-1 later through a campaign, but no Pentavalent dose. Which risk assessment is most appropriate for counselling the family?

A Only tuberculosis risk remains because BCG is the base vaccine for all bacterial childhood diseases
B The child remains vulnerable to diseases targeted by Pentavalent vaccine, including diphtheria, pertussis, tetanus, Hepatitis B and Hib-related meningitis or pneumonia
C The child is already protected against diphtheria, pertussis, tetanus, Hepatitis B and Hib disease because OPV substitutes for Pentavalent
D Only measles risk remains because MR-1 cancels the need for all earlier infant vaccines
Explanation

The consequence of missed immunization must be linked to the specific missed antigen. Pentavalent vaccine is not replaced by OPV, BCG or MR. Without its doses, the child lacks scheduled protection against diphtheria, pertussis, tetanus, Hepatitis B and Hib-related illnesses such as meningitis and pneumonia.

Q4For monitoring under the Universal Immunization Programme, which statement most accurately separates 'full immunization' before 1 year from 'complete immunization' before 2 years?

A Full immunization covers the due infant series up to MR-1 and JE-1 where applicable before 1 year; complete immunization adds second-year boosters such as MR-2, DPT booster, OPV booster and JE-2 where applicable
B Full immunization and complete immunization are interchangeable terms for the same 9-12 month visit
C Full immunization is limited to BCG, OPV-0 and Hepatitis B birth dose; complete immunization adds only Vitamin A
D Full immunization includes only injectable vaccines; complete immunization includes only oral vaccines
Explanation

UIP monitoring uses two age milestones. Full immunization by the first birthday includes the primary infant doses and the 9-12 month vaccines such as MR-1 and JE-1 where applicable. Complete immunization by the second birthday adds the 16-24 month vaccines, including MR-2, DPT booster, OPV booster and JE-2 where applicable.

Q5At a 9-12 month immunization session, a child in a Japanese Encephalitis endemic district is also due for Vitamin A as per the national schedule. Which combination is most accurate?

A BCG, OPV-0, Hepatitis B birth dose and Td booster
B MR-1, JE-1 where applicable, PCV booster and Vitamin A first dose
C DPT booster-1, OPV booster and MR-2, with Vitamin A second dose
D Only PCV booster; MR and Vitamin A are postponed until 5-6 years
Explanation

The 9 completed months to 12 months contact is a distinct schedule point: MR-1 is due, JE-1 is added in endemic districts, PCV booster is scheduled, and Vitamin A begins with the first dose. These should not be confused with 16-24 month boosters.

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More questions

6A newborn is delivered at a health facility and is being prepared for routine birth-dose vaccination. Which set matches the National Immunization Schedule at birth?

APentavalent-1, fIPV-1 and PCV-1
BBCG, OPV-0 and MR-1
CDPT booster-1, OPV booster and MR-2
DBCG, OPV-0 and Hepatitis B birth dose

7A newborn is being discharged 18 hours after an uncomplicated institutional delivery. Under the National Immunization Schedule, which set of vaccines should the ANM verify as birth-dose vaccines before discharge, unless medically deferred?

ABCG, OPV-0 and Hepatitis B birth dose
BBCG, Pentavalent-1 and Rotavirus vaccine-1
COPV-1, fIPV-1 and PCV-1
DMR-1, JE-1 and Vitamin A first dose

8A 14-week-old infant who has received vaccines as per schedule comes for the third primary immunization visit. Which choice best represents vaccines due at 14 weeks under the National Immunization Schedule, excluding state-specific JE and later boosters?

ABCG, Hepatitis B birth dose and OPV-0
BDPT booster-1, OPV booster and MR-2
COPV-3, Pentavalent-3, Rotavirus-3, fIPV-2 and PCV-2
DMR-1, PCV booster and Vitamin A first dose

9Which statement correctly distinguishes full immunization from complete immunization in the National Immunization Schedule terminology used in routine immunization training?

AFull immunization means only birth doses; complete immunization means only adolescent Td doses
BFull immunization is achieved before 5 years; complete immunization is achieved only after 16 years
CFull immunization covers scheduled doses by the first year; complete immunization adds second-year doses such as MR-2, DPT booster, OPV booster and JE-2 where applicable
DFull immunization and complete immunization are exact synonyms with no schedule difference

10Under India's National Immunization Schedule, a pregnant woman reports at her first antenatal visit and says she received two tetanus-containing vaccine doses during a pregnancy two years ago. Which action is schedule-correct?

AGive BCG and Hepatitis B birth dose to the mother
BGive one Td booster dose during the current pregnancy
CDefer all tetanus-containing vaccination until labour begins
DRestart with Td-1 and Td-2 separated by four weeks

11A supervisor is checking whether a trainee understands the route and site of vaccines. Which pairing is correct under the National Immunization Schedule?

ABCG: intradermal route, left upper arm
BHepatitis B birth dose: intradermal route, right upper arm
COPV: intramuscular route, antero-lateral thigh
DMR vaccine: oral route, mouth

12A 16-year-old girl comes to an adolescent health session and says she received all childhood vaccines, so no vaccine is due now. Under the current UIP adolescent schedule, what should the supervisor check?

AWhether she should restart BCG because immunity from the birth dose expires at adolescence
BWhether she has received DPT-Booster-2, because it is scheduled at 16 years
CWhether she is due for Td at 16 years, because Td replaced TT in UIP to maintain tetanus protection and add adult diphtheria protection
DWhether she should receive MR-2 now, because MR-2 is first due at 16 years

13In a village immunization session, the supervisor notices that the 10-week column has been filled with fIPV-2 and PCV-2 for every child. Which correction best matches the National Immunization Schedule?

AShift OPV-2 and Pentavalent-2 to 14 weeks because 10 weeks is reserved for counselling
BAt 10 weeks record only Rotavirus vaccine-2 because injectable vaccines are avoided at this visit
CGive fIPV-2 and PCV-2 at 10 weeks along with OPV-2 and Pentavalent-2
DAt 10 weeks record OPV-2, Pentavalent-2 and Rotavirus vaccine-2; fIPV-2 and PCV-2 are due at 14 weeks

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