Classically, the reaction of an organism to a new antigenic challenge and the retention of a memory of this, as opposed to innate immunity. In modern terms, the clonal selection and expansion of a population of immune cells in response to a specific antigenic stimulus and the persistence of this clone.
Immunity which develops in response to foreign antigens in the body, involving either the production of antibodies or activated T cells which react specifically with the foreign antigen.
- immunity to a particular disease that is not innate but has been acquired during lifeFound on http://www.webdictionary.co.uk/definition.php?query=acquired%20immunity
Acquired immunity: Immunity acquired by infection or vaccination (active immunity) or by the transfer of antibody or lymphocytes from an immune donor (passive immunity). Acquired immunity is in contrast to innate immunity (natural immunity).Found on http://www.medterms.com/script/main/art.asp?articlekey=26309
<immunology> A form of cellular defense which identifies certain foreign substances (antigens) as harmful to the body. For this reason, the body can acquire resistance to a particular foreign agent. ... These foreign agents are then attacked by sensitised T lymphocytes (cellular immunity). White blood cells, plasma cells, B lymphocytes and ot...Found on http://www.mondofacto.com/facts/dictionary?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 ...Found on http://wordnetweb.princeton.edu/perl/webwn?s=acquired%20immunity
specific immunity attributable to the presence of antibody and to heightened reactivity of lymphoid cells that can form antibodies in cell-mediated immunity, and of phagocytic cells; this is seen after exposure to certain infectious agents and their antigens, as well as in adoptive immunity.Found on http://www.encyclo.co.uk/local/21001
Immunity resulting from exposure to disease after birth. Immunity can be acquired by the development of antibodies after an attack of an infectious disease. Broader term(s): ImmunityFound on http://www.pregnology.com/AZ/A/3
Type: Term Definitions: 1. resistance resulting from previous exposure of an individual in question to an infectious agent or antigen; it may be active and specific, as a result of naturally acquired (apparent or inapparent) infection or intentional vaccination (artificial active immunity); or it may be passive, being acquired through transfer of a...Found on http://www.medilexicon.com/medicaldictionary.php?t=43651
Immunity obtained either from the development of antibodies in response to exposure to an antigen, as from vaccination or an attack of an infectious disease, or from the transmission of antibodies, as from mother to fetus through the placenta or the injection of antiserum. Results in resistance to further infection.Found on http://www.apluspetgoods.com/petsupplies/dog-glossary.php
Non-heritable resistance to disease acquired from the dam, developed as a result of exposure to microorganisms in the environment or developed from the injection of serums or vaccines. Across flock tiesFound on http://www.sheepusa.org/
Immunity to certain diseases, which is not present at birth, but is acquired later in life. The immunity can occur due to the body developing antibodies because of being infected by a disease, by vaccination, or by antibodies being passed to an unborn child through the placenta.Found on http://www.buzzle.com/articles/medical-glossary-definitions-of-medical-term
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