Active immunization
Active immunization is the induction of immunity after exposure to an antigen. Antibodies are created by the recipient and may be stored permanently.[1] This creates memory cells which will respond if the same pathogen appears again.
Cause
[edit]Active immunization can occur naturally when microbes or other antigen are received by a person who has not yet come into contact with the microbes and has no pre-made antibodies for defense. It happens with the adaptive immune system and after exposure to antigen, it will create memory cells.[2]The immune system will eventually create antibodies for the microbes, but this is a slow process and, if the microbes are dead, there may not be enough time for the antibodies to be used.[citation needed]
Artificial active immunisation
[edit]Artificial active immunization is where the microbe is injected into the person before they are able to take it in naturally. The microbe is treated, so that it will not harm the infected person. Depending on the type of disease, this technique also works with dead microbes, parts of the microbe, or treated toxins from the microbe. A common example of this form of active immunisation is vaccinations.[3]
See also
[edit]References
[edit]- ↑ CDC (2026-02-10). "Immunity Types". Vaccines & Immunizations. Retrieved 2026-08-06.
- ↑ "Active and passive immunity". Student Academic Success. Retrieved 2026-08-06.
- ↑ Miller, Elizabeth (2015). "Controversies and Challenges of vaccination: An interview with Elizabeth Miller". BMC Medicine. 13: 267. doi:10.1186/s12916-015-0508-z. PMC 4608187. PMID 26472230.
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