Term
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Definition
| One of the blood typing systems that is based on the presence or absence of blood group antigens A and B on red blood cells |
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Term
| acquired immune deficiency syndrome (AIDS) |
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Definition
| An infectious disease caused by the human immunodeficiency irus that destroys the individuals immune system |
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Term
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Definition
| Primary immunodeficiency disease caused by failure of B cells to develop, resulting in lack of antibodies |
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Term
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Definition
| a reaction of antibodies with antigens that results in agglutination, the clumping together of cells or other large particles |
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Term
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Definition
| an ordinary innocuous foreign substance that can elicit an adverse immunological response in a sensitized person |
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Term
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Definition
| "hypersensitivity"; when the immune system reacts in an exaggerated or inappropriate way to a foreign substance |
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Term
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Definition
| a graft of tissue between two organisms of the same species that are not genetically identical |
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Term
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Definition
| condition resulting from a sudden extreme drop in blood pressure caused by an allergic reaction |
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