Immunisation

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Immunization (synonym of vaccination) is the process of protection of susceptible individuals from communicable disease by administration of a living modified agent (as in yellow fever), a suspension of killed organisms (as in whooping cough),or an inactivated toxin (as in tetanus).

The artificial induction of active immunity by introducing into a vulnerable host the specific antigen of a pathogenic organism.

Immunization is the process of developing immunity by a single or repeated in-apparent asymptomatic infection.


Complied from Porta M. A Dictionary of Epidemiology. 5th ed. New York, NY: Oxford University Press; 2008.

External Links

  • www.vaccineindia.org - Website run by Dr.Ajay Gambhir and Dr. Akhilesh Singh on immunisation in India.
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