Universal Immunization Program — MCQs
A young male came to the hospital with a clean-cut wound without any bleeding. The patient received a full course of tetanus vaccination 10 years ago. What is the best management for this patient?
Ideal temperature for DPT storage?
Assertion: VZV vaccine is live attenuated. Reason: It cannot be given to immunocompromised patients.
Which of the following statements about Anganwadi workers is incorrect?
Mission Indradhanush is for:
A child presented at 18 months of age who has never been vaccinated before. Which vaccines will you administer?
A 2 year old child has presented for vaccination, who has never been vaccinated earlier. As per the Universal Immunization Program, which vaccines will be administered to the child on the first visit?
In a 10-year-old school child under the school health program, which vaccine should be administered?
Smallpox eradication was not due to:
A 2-year-old child diagnosed provisionally with diphtheria and on examination she has greyish white membrane patch around her tonsils. The child has a 6-year-old sibling at home, who is fully immunized as per the schedule. What is the best measure to prevent disease in the sibling of the child?
Universal Immunization Program Indian Medical PG Practice Questions and MCQs
Question 1: A young male came to the hospital with a clean-cut wound without any bleeding. The patient received a full course of tetanus vaccination 10 years ago. What is the best management for this patient?
- A. Single-dose tetanus toxoid (Correct Answer)
- B. Human tetanus immunoglobulin only
- C. Human tetanus immunoglobulin and a full course of vaccine
- D. No treatment required
Explanation: ***Single-dose tetanus toxoid*** - For a **clean-cut wound** in a patient who completed a **primary tetanus vaccination series** and received their last dose more than 5 years ago but less than 10 years ago, a **single booster dose** of tetanus toxoid is recommended. [1] - A booster ensures continued protection, as vaccine-induced immunity wanes over time, but the prior full course provides a robust anamnestic response with a single dose. *Human tetanus immunoglobulin and a full course of vaccine* - This regimen (tetanus immunoglobulin + vaccine) is typically reserved for patients with **unvaccinated status**, an **unknown vaccination history**, or a **severely contaminated wound** (e.g., rusty nail, soil contamination) who have not been fully vaccinated. - The patient had a **clean-cut wound** and completed a full course of vaccination 10 years ago, making immunoglobulin unnecessary and a full course of vaccine excessive. *Human tetanus immunoglobulin only* - Administering **tetanus immunoglobulin alone** is appropriate for immediate, passive immunity in situations where a patient is unvaccinated or has an unknown vaccination status and has a significant risk of tetanus from a contaminated wound. [2] - This patient has a clean wound and a history of full vaccination, so a booster is sufficient to stimulate active immunity. *No treatment required* - While the patient was fully vaccinated 10 years ago, the protection from tetanus vaccination can **wane over time**, especially after 5-10 years. - A **booster dose** is crucial to maintain adequate protection against tetanus, even for a clean wound, given the 10-year interval since the last dose.
Question 2: Ideal temperature for DPT storage?
- A. Room temperature
- B. 4 to 8°C (Correct Answer)
- C. 0 to - 20°C
- D. None of the options
Explanation: ***4 to 8°C*** - The ideal temperature for DPT (diphtheria, pertussis, tetanus) vaccine storage is between **+2°C and +8°C** (or 35°F and 46°F), which is the standard refrigerator temperature range. - This temperature range is crucial for maintaining the **potency** and **efficacy** of the vaccine, preventing **degradation** due to excessive heat or cold. *Room temperature* - Storing DPT vaccines at **room temperature** (typically 20-25°C or 68-77°F) for extended periods can lead to a **loss of potency** as heat can degrade vaccine components. - While short-term excursions within this range might be permissible under specific conditions (e.g., during transport), it is not the ideal long-term storage solution. *0 to - 20°C* - DPT vaccines, particularly the **whole-cell pertussis (wP)** component, can be **damaged by freezing**. - Temperatures below 0°C can cause the **adjuvant** (usually aluminum salt) to separate, leading to a loss of efficacy and potential local reactions at the injection site. *None of the options* - This option is incorrect because **4 to 8°C** is indeed the established and recommended ideal storage temperature for DPT vaccines.
Question 3: Assertion: VZV vaccine is live attenuated. Reason: It cannot be given to immunocompromised patients.
- A. Both true, reason doesn't explain assertion
- B. Assertion true, reason false
- C. Assertion false, reason true
- D. Both true, reason explains assertion (Correct Answer)
Explanation: ***Both true, reason explains assertion*** - The **VZV (varicella-zoster virus) vaccine** is indeed a **live attenuated vaccine** containing weakened virus - the assertion is **TRUE** - It **cannot be given to immunocompromised patients** due to risk of vaccine-strain disease - the reason is **TRUE** - The reason **directly explains the assertion**: BECAUSE the vaccine is live attenuated, it poses infection risk and therefore cannot be used in immunocompromised individuals - The **causal relationship** is clear: live attenuated nature → contraindication in immunocompromised patients *Both true, reason doesn't explain assertion* - While both statements are factually true, this option would only be correct if the reason was unrelated to the assertion - However, the reason **directly explains WHY** the live attenuated nature is clinically significant - The contraindication is a **direct consequence** of the vaccine being live attenuated, so the reason does explain the assertion *Assertion true, reason false* - The assertion is true (VZV vaccine is live attenuated) - However, the reason is also **TRUE** - live attenuated vaccines are indeed contraindicated in immunocompromised patients due to risk of disseminated vaccine-strain infection - Since both statements are true, this option is incorrect *Assertion false, reason true* - The assertion is **TRUE**, not false - VZV vaccine (Varivax, Zostavax) is a **live attenuated vaccine** containing the Oka strain - This option incorrectly claims the assertion is false - Since the assertion is factually correct, this option cannot be right
Question 4: Which of the following statements about Anganwadi workers is incorrect?
- A. Training for 40 days
- B. Under ICDS scheme
- C. Mostly female
- D. Covers a population of 2000 (Correct Answer)
Explanation: ***Covers a population of 2000*** - An **Anganwadi center** typically covers a population of **1000** in rural and urban areas, and **700** in tribal areas, not 2000. - This statement is incorrect because the specified population coverage is double the standard norm for an Anganwadi center. *Mostly female* - The vast majority of **Anganwadi workers** are **women** from the local community. - This is a correct statement, reflecting the gender composition of the Anganwadi workforce. *Training for 40 days* - **Anganwadi workers** undergo an initial **training program of 40 days**. - This statement is correct, outlining the standard duration of their foundational training. *Under ICDS scheme* - **Anganwadi centers** are a crucial part of the **Integrated Child Development Services (ICDS) scheme**. - This statement is correct, as the ICDS scheme established and oversees Anganwadi centers to provide health, nutrition, and early childhood education services.
Question 5: Mission Indradhanush is for:
- A. Non-communicable diseases
- B. Universal immunization (Correct Answer)
- C. Family planning
- D. Safe water and sanitation
Explanation: ***Universal immunization*** - **Mission Indradhanush** is a flagship program launched by the Government of India in 2014 to achieve **full immunization coverage** for children and pregnant women. - The mission aims to immunize children against 12 vaccine-preventable diseases, including diphtheria, whooping cough, tetanus, polio, tuberculosis, measles, hepatitis B, and meningitis/pneumonia caused by Haemophilus influenzae type b. *Non-communicable diseases* - Programs for **non-communicable diseases** typically focus on screening, early detection, and management of conditions like diabetes, hypertension, and cancer. - While important for public health, this is not the primary focus of Mission Indradhanush, which targets infectious diseases. *Family planning* - **Family planning programs** aim to provide information and access to contraception and reproductive health services to individuals and couples. - This is a distinct public health initiative separate from the immunization efforts of Mission Indradhanush. *Safe water and sanitation* - Initiatives for **safe water and sanitation** focus on improving access to clean drinking water and proper waste disposal systems to prevent waterborne and sanitation-related diseases. - While crucial for preventing many infections, this is not within the scope of Mission Indradhanush's primary objective of increasing vaccine coverage.
Question 6: A child presented at 18 months of age who has never been vaccinated before. Which vaccines will you administer?
- A. BCG and OPV
- B. Pentavalent vaccine alone
- C. DPT, OPV and MMR (Correct Answer)
- D. MMR, OPV, Rotavirus
Explanation: ***DPT, OPV and MMR*** - Among the given options, **DPT, OPV, and MMR** represent the **most comprehensive combination** for an unvaccinated 18-month-old child. - **DPT** provides protection against Diphtheria, Pertussis, and Tetanus (in modern practice, **Pentavalent vaccine** containing DPT+Hib+Hepatitis B is preferred). - **OPV** is essential for polio protection as part of catch-up immunization. - **MMR** (Measles, Mumps, Rubella) is critical at this age, as the first dose is typically given at 9-12 months. - **Note:** A complete catch-up schedule would also include **Hepatitis B vaccine** (if not using Pentavalent), **BCG** (if never given), and **Hib vaccine**, but this option covers the maximum number of essential vaccines among the choices provided. *BCG and OPV* - While both **BCG** and **OPV** should be part of catch-up vaccination at 18 months, this combination alone is **grossly incomplete**. - It misses critical vaccines like **DPT/Pentavalent**, **Hepatitis B**, and **MMR**. - BCG should still be given at 18 months if the child was never vaccinated, despite being ideally administered at birth. *Pentavalent vaccine alone* - **Pentavalent vaccine** (DPT+Hib+Hepatitis B) is actually preferred in modern Indian immunization practice over standalone DPT. - However, giving only Pentavalent would miss **MMR** and adequate **polio vaccination** (OPV/IPV), both of which are critical at this age. - A catch-up schedule requires multiple vaccines, not just one. *MMR, OPV, Rotavirus* - **MMR** and **OPV** are indeed essential for an 18-month-old in catch-up vaccination. - However, **Rotavirus vaccine** is **contraindicated** at this age—it must be started by 14 weeks and completed by 8 months of age (maximum age for last dose varies by vaccine brand but typically 24-32 weeks). - This combination also misses **DPT/Pentavalent** and **Hepatitis B**, making it incomplete.
Question 7: A 2 year old child has presented for vaccination, who has never been vaccinated earlier. As per the Universal Immunization Program, which vaccines will be administered to the child on the first visit?
- A. BCG and Hepatitis B vaccine
- B. DPT-I vaccine only
- C. DPT-I and Hepatitis B vaccine
- D. BCG, DPT-I and Measles vaccine (Correct Answer)
Explanation: ***BCG, DPT-I and Measles vaccine*** - As per the **Universal Immunization Program (UIP)** for a previously unvaccinated child, **all age-appropriate vaccines** should be administered on the first visit. - At 2 years of age, the child is eligible for **BCG**, the first dose of **DPT (DPT-I)**, and **Measles vaccine** (if no prior measles vaccination, which is the case here). *BCG and Hepatitis B vaccine* - While **BCG** is appropriate, **Hepatitis B vaccine** is typically given at birth and then subsequent doses at 6, 10, and 14 weeks as part of the primary series. A 2-year-old would likely need further doses of DPT and Measles. - This option misses other crucial age-appropriate vaccines like **DPT-I** and the **Measles vaccine** for a 2-year-old child. *DPT-I vaccine only* - Administering only **DPT-I** would result in missed opportunities for protection against **tuberculosis (BCG)** and **measles**, both of which are critical for a 2-year-old. - This approach does not follow the principle of providing **all age-appropriate vaccines** on the first contact with an unvaccinated child. *DPT-I and Hepatitis B vaccine* - This option correctly includes **DPT-I** but misses the essential **BCG** and **Measles vaccine** for a 2-year-old, which are crucial for this age group. - While Hepatitis B is important, the primary series would have been missed, and focusing solely on DPT-I and Hepatitis B for a 2-year-old is an incomplete vaccination schedule.
Question 8: In a 10-year-old school child under the school health program, which vaccine should be administered?
- A. DPT
- B. BCG
- C. Td (Correct Answer)
- D. MMR
Explanation: ***Td (Tetanus-Diphtheria)*** - For a 10-year-old child under the school health program in India, the recommended vaccination is a booster dose of **Td (tetanus-diphtheria)**. - This ensures continued **protection against tetanus and diphtheria**, as immunity from the primary series may wane over time. - **Td is preferred over TT** (tetanus toxoid alone) as it provides protection against both tetanus and diphtheria. - This is administered at **10 years and 16 years** as per the Indian Academy of Pediatrics immunization schedule. *DPT* - **DPT (diphtheria, pertussis, tetanus)** is administered in infancy and early childhood (at 6, 10, and 14 weeks, with boosters at 16-24 months and 4-6 years). - The **pertussis component is not given** in later childhood or adolescence due to increased reactogenicity in older children. *BCG* - **BCG (Bacille Calmette-Guérin)** vaccine protects against tuberculosis and is given **at birth** in endemic areas like India. - It is **not routinely administered** to a 10-year-old unless there are specific risk factors or documented non-vaccination status. *MMR* - **MMR (measles, mumps, rubella)** vaccine is given as **two doses**: first at 9-12 months and second at 16-24 months (or 4-6 years). - A 10-year-old child would have **already completed** their MMR vaccination schedule.
Question 9: Smallpox eradication was not due to:
- A. Highly effective vaccine
- B. Cross-immunity with animal pox virus (Correct Answer)
- C. Subclinical infections do not transmit the disease
- D. Life long immunity
Explanation: ***Cross-immunity with animal pox virus*** - While cowpox provided the basis for the smallpox vaccine, **cross-immunity with naturally circulating animal pox viruses** did not contribute to the eradication of smallpox itself. - The eradication was achieved through targeted vaccination campaigns with a **human-specific vaccine**, not by incidental cross-protection from wildlife. *Highly effective vaccine* - The smallpox vaccine was highly effective, providing **strong and long-lasting immunity** against the Variola virus. - This effectiveness was crucial for establishing herd immunity and breaking the chains of transmission. *Subclinical infections do not transmit the disease* - Individuals infected with smallpox either developed **symptomatic disease** or were **immune/resistant** to infection. - The absence of asymptomatic carriers who could silently transmit the virus made it feasible to interrupt transmission through targeted vaccination and surveillance. *Life long immunity* - Both natural infection and successful vaccination provided **long-lasting, often lifelong immunity** to smallpox. - This durable immunity prevented reinfection and helped sustain the protection achieved through vaccination campaigns over time.
Question 10: A 2-year-old child diagnosed provisionally with diphtheria and on examination she has greyish white membrane patch around her tonsils. The child has a 6-year-old sibling at home, who is fully immunized as per the schedule. What is the best measure to prevent disease in the sibling of the child?
- A. Prophylactic erythromycin to be given (Correct Answer)
- B. Nothing is required to be done
- C. Full course of DPT
- D. Booster dose of DPT
Explanation: ***Prophylactic erythromycin to be given*** - All **close contacts** of a diphtheria patient, regardless of their immunization status, should receive **antibiotic prophylaxis** to eliminate carriage of *C. diphtheriae*. - **Erythromycin** is a commonly recommended antibiotic for this purpose, given its effectiveness against the bacteria. *Nothing is required to be done* - This is incorrect because, even if immunized, a close contact can still be a **carrier** of *C. diphtheriae* and transmit the infection to others. - **Diphtheria toxin** can still be produced by carriers, posing a risk of disease development if not cleared. *Full course of DPT* - This is unnecessary for a fully immunized child; a full course is typically for **unimmunized** or **incompletely immunized** - **Antibiotic prophylaxis** is the immediate priority for preventing illness in contacts. *Booster dose of DPT* - A booster dose offers **active immunity** but does not immediately address potential asymptomatic carriage of *C. diphtheriae*. - The primary goal for a contact is to eliminate the bacteria, which antibiotics can achieve more rapidly.
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