| antigenic variation |
Some species of disease agent seek to evade the hosts' defence mechanisms by altering their antigenic characteristics. The most extreme case of antigenic variation occurs in trypanosomiasis, where infection in the host usually takes the form of a series of parasitaemias each one of which involves a form of trypanosome antigenically different from the preceding one. This type of antigenic variation occurs during the course of a single infection.
출처: www.fao.org/Wairdocs/ILRI/x5436E/x5436e04.htm
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| antigenic shift |
which involves a major change in antigenicity, so that previously infected individuals possess little or no immunity to the shifted agent.
출처: www.fao.org/Wairdocs/ILRI/x5436E/x5436e04.htm
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| antigen |
Any substance that antagonizes or stimulates the immune system to produce antibodies (ie, proteins that fight antigens). Antigens are often foreign substances such as bacteria or viruses.
출처: www.amfar.org/cgi-bin/iowa/bridge.html
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| antigen |
A substance capable of inducing an immune response. Exposure to this substance results in production of a specific antibody or a sensitized lymphocyte that in turn interacts with the antigen. In some autoimmune diseases, the body's own tissues may act as antigens.
출처: www.cnn.com/HEALTH/library/AR/00026.html
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| antigenic determinant |
Determine' the specificity of the antibody or lymphocyte area(s) on an antigen molecule that bind with antibody or specific receptor sites on the sensitised lymphocyte.
출처: www.pestmanagement.co.uk/lib/glossary/glossary_a.s...
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