Vaccination involves :

Vaccination involves :

injecting the body with materials that stimulate the body to produce antibodies
injecting the body with materials that stimulate the body to produce antigens
the use of monoclonal antibodies to cure a disease
use of antibiotics to cure diseases
This question was previously asked in
UPSC CAPF – 2016
Vaccination involves introducing materials into the body that stimulate the immune system to produce specific antibodies, thereby providing immunity against a particular disease.
– The material injected during vaccination (vaccine) contains antigens from a pathogen (either weakened/inactivated forms, parts of the pathogen, or genetic material).
– The presence of these antigens triggers an immune response, including the production of antibodies and the formation of memory cells.
– This prepares the body to mount a rapid and effective immune response if it encounters the actual, live pathogen later.
– Vaccination prevents disease, while antibiotics (Option D) treat bacterial infections once they occur. Monoclonal antibodies (Option C) are specific antibodies used for therapeutic purposes, different from the principle of vaccination. Option B is incorrect as vaccination stimulates the body *against* antigens, not to produce them.
Vaccines are one of the most effective public health interventions, having significantly reduced the incidence and mortality of many infectious diseases worldwide. They work by leveraging the body’s natural adaptive immune system.
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