Which of the following is produced by the administration of vaccines?

DSSSB 13 August 2024

Applied Microbiology & Infection control

Easy

Appeared in: DSSSB 13 August 2024

Explanation

Vaccination involves introducing a weakened, inactivated, or partial form of a pathogen (an antigen) into the body through a medical procedure.
This antigen is not strong enough to cause the disease but is sufficient to stimulate the recipient's own immune system.
The immune system responds by actively producing specific antibodies and memory cells to fight off the antigen.
Because the immunity is acquired through a medical intervention ('artificial') and the body actively produces the antibodies ('active'), it is correctly termed artificial active immunity.
This process provides long-term, often lifelong, protection against the specific disease.

Option A: Artificial passive immunity involves the direct administration of pre-formed antibodies (immunoglobulins) from an external source. The recipient's body does not produce its own antibodies.
Option B: Natural active immunity is acquired when a person is exposed to a pathogen through natural means (e.g., getting sick), and their body actively produces antibodies in response.
Option C: Natural passive immunity is the transfer of ready-made antibodies from one person to another through natural processes. The recipient's body is passive and does not produce the antibodies.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification of acquired immunity as background academic context rather than a clinical decision trigger.
Nurses are at the forefront of immunization programs. A clear understanding of immunity types is essential for administering vaccines correctly and for patient education.
It is crucial to explain to patients that vaccine-induced immunity (active) takes time to develop but provides long-lasting protection, whereas immunoglobulin therapy (passive) provides immediate but temporary protection.
Patient counseling should include information on vaccination schedules, potential mild side effects (like low-grade fever, which indicates an active immune response), and the importance of completing the full series for optimal protection.

How to Approach the Question

First, identify the core concept of the question, which is the type of immunity resulting from 'vaccines'.
Next, break down the terminology in the options. Each option has two parts: the source ('Natural' vs. 'Artificial') and the body's response ('Active' vs. 'Passive').
'Artificial' implies a medical intervention, while 'Natural' implies a process that occurs without medical help.
'Active' means the individual's own body produces the antibodies. 'Passive' means the individual receives ready-made antibodies.
A vaccine is a medical intervention, so the immunity is 'Artificial'.
A vaccine stimulates the body to produce its own antibodies, so the response is 'Active'.

Concept Tested & Keywords

QwVl8yHmHnYDhWIu_VUR2W

E6 Pharmacology Nursing Lilley 11e Part 3 pp. 148-150, 147-149

E6 Physiology Essentials Sembulingam 10e Part 1 p. 126-128