Which type of immunity is produced by vaccination?

Appeared in: MNS 2015

Explanation

Vaccination introduces antigens into the body, stimulating the immune system to produce its own antibodies and memory cells.
This process of developing immunity after exposure to an antigen is known as acquired immunity.
Specifically, vaccination confers active artificially acquired immunity, providing long-lasting protection against a specific pathogen.

Option B: Innate immunity is the body's non-specific, inborn defense system (e.g., skin, phagocytes) and is not developed in response to a specific pathogen through vaccination.
Option C: Passive immunity involves receiving pre-formed antibodies from an external source (e.g., maternal antibodies, antiserum). Vaccination stimulates the body to produce its own antibodies.
Option D: Herd immunity is an epidemiological concept describing indirect protection at the population level. It is a result of widespread vaccination but is not the type of immunity an individual develops.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Types of Immunity and Vaccination as background academic context rather than a clinical decision trigger.
Nurses are central to vaccination programs, responsible for administration, patient education on benefits and side effects, and managing the cold chain.
Understanding the difference between active and passive immunity is crucial for explaining to patients why vaccines provide long-term protection, while treatments like monoclonal antibodies offer temporary, immediate protection.
What if? A patient who is immunocompromised cannot mount an effective response to a vaccine. In this case, they might receive passive immunity through immunoglobulin infusions for protection, as their ability to acquire active immunity is impaired.

How to Approach the Question

First, identify the core concept of the question: the type of immunity resulting from vaccination.
Recall the definition of vaccination: introducing a pathogen or antigen to stimulate an immune response.
Analyze the options: Acquired (developed after birth), Innate (present at birth), Passive (receiving antibodies), and Herd (population-level).
Connect the process of vaccination (stimulating a response) to the definitions. Vaccination causes the body to acquire the ability to fight a disease.
Eliminate other options: It's not innate (it's developed), not passive (the body makes its own antibodies), and not herd (which is a consequence for the population, not the individual's immunity type).
Conclude that vaccination produces acquired immunity.

Concept Tested & Keywords

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E6 Parks TextBook of Preventive & Social Medicine part 1 — Subpart A (pp 26-201 of 604) p. 95-97

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E6 Medicine Harrison 22e Part 1 p. 1037-1039

Practise the full MNS 2015

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