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antigen |
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antigenAny substance that causes the production of antibodies by the body's immune system. Common antigens include the proteins carried on the surface of bacteria, viruses, and pollen grains. The proteins of incompatible blood groups or tissues also act as antigens, which has to be taken into account in medical procedures such as blood transfusions and organ transplants. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The aMPV C identified in the United States has been reported only in North America and is antigenically and genetically different from subtypes A, B, and D detected in Europe, Asia, Africa, and South America (15-18). The swine flu virus of 1976 really was antigenically quite similar to the Spanish flu virus; the "problem," if you want to call it that, was that 1976 had little in common with 1918. The uniqueness of individual life forms, as expressed antigenically and immunologically, for example, is attributable to the fact that their complexity exceeds their numbers. |
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