active immunity

Also found in: Medical, Legal, Encyclopedia.

active immunity

n.
Immunity resulting from the development of antibodies in response to the presence of an antigen, as from vaccination or exposure to an infectious disease.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

ac′tive immu′nity


n.
immunity resulting from one's own production of antibody or white blood cells.
[1910–15]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.active immunity - a form of acquired immunity in which the body produces its own antibodies against disease-causing antigensactive immunity - a form of acquired immunity in which the body produces its own antibodies against disease-causing antigens
acquired immunity - immunity to a particular disease that is not innate but has been acquired during life; immunity can be acquired by the development of antibodies after an attack of an infectious disease or by a pregnant mother passing antibodies through the placenta to a fetus or by vaccination
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Mentioned in
References in periodicals archive
By comparison, HepA vaccine offers the advantages of easier administration, inducing active immunity, and providing longer protection.
Hepatitis vaccination update
HepA vaccine for PEP provides advantages over IG, including induction of active immunity, longer duration of protection, ease of administration, and greater acceptability and availability.
Update: Recommendations of the Advisory Committee on Immunization Practices for Use of Hepatitis A Vaccine for Postexposure Prophylaxis and for Preexposure Prophylaxis for International Travel
grippotyphosa organism for active immunity in dogs.
A Study on Prevalence of Canine Leptospirosis in Chennai
Breast milk is the main source of passive and active immunity during the early, vulnerable months.
Why breastfeeding is crucial within the 1st hour of childbirth
Passive immunity will provide immediate protection to the body, but the body will not develop immunological memory from these sources, and thus the person will be at risk of being infected by the same pathogen later unless he or she acquires his or her own active immunity or is vaccinated.
A Guide to the Human Immune System: How It Works and How You Can Keep It Strong
Copyright © 2003-2025 Farlex, Inc Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.