Which vaccine is primarily given to children to prevent tuberculosis?

Appeared in: MP NHM CHO-2024 (Shift-2)

Explanation

BCG stands for Bacillus Calmette-Guérin, which is a live attenuated vaccine derived from Mycobacterium bovis.
Its primary purpose is to protect against tuberculosis (TB), especially severe forms of the disease in children, like miliary TB and tuberculous meningitis.
The BCG vaccine is a key component of the National Immunization Schedule in India and is recommended at birth.

Option A: The MMR vaccine protects against Measles, Mumps, and Rubella, which are viral infections, not the bacterial infection tuberculosis.
Option B: The DPT vaccine targets Diphtheria, Pertussis (whooping cough), and Tetanus. It does not offer protection against tuberculosis.
Option D: The HepB vaccine is for preventing Hepatitis B, a viral infection that affects the liver. It has no efficacy against tuberculosis.

Visual 1: Chart - A chart of the National Immunization Schedule (India) showing which vaccines are given at different ages. This helps place BCG in the context of other childhood vaccinations.
Visual 2: Illustration - An illustration showing the intradermal injection site for the BCG vaccine on the left upper arm and the resulting scar. This reinforces the unique administration and outcome of this vaccine.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Childhood immunization and vaccine-preventable diseases as background academic context rather than a clinical decision trigger.
Administering BCG at birth is a critical public health measure in countries with a high burden of TB, like India, to prevent severe childhood forms of the disease.
Nurses must be proficient in giving the intradermal injection correctly to ensure efficacy and minimize adverse local reactions like abscess formation or enlarged lymph nodes.
The presence of a BCG scar is often used as a reliable indicator of prior vaccination, which is important information during health screenings and pediatric check-ups.

How to Approach the Question

This is a factual recall question that tests your knowledge of common childhood vaccines.
First, identify the key disease mentioned in the question stem: 'tuberculosis'.
Next, review the options, which are all acronyms for common vaccines.
Recall or deduce the full name and purpose of each vaccine: MMR (Measles, Mumps, Rubella), DPT (Diphtheria, Pertussis, Tetanus), BCG (Bacillus Calmette-Guérin), and HepB (Hepatitis B).
Match the disease (tuberculosis) with its specific vaccine. BCG is the only vaccine listed that protects against TB.
Confirm that the other options protect against different diseases, making them incorrect choices for this question.

Concept Tested & Keywords

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Practise the full MP NHM CHO-2024 (Shift-2)

Attempt every question from this paper in a timed mock, then review the full solution for each one.