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Exam 14: HIV/AIDS Key Terms

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Term
Definition
Acquired Immunodeficiency Syndrome (AIDS)   the end stage of HIV infection in which the infected person has a CD4 count of 200 cell/mm3 or fewer.  
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Adherence   following a prescribed regimen of therapy  
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CD4+Lymphocyte   a type of white blood cell; a protein on the surface of cells that normally helps the body’s immune system combat disease.  
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Centers for Disease Control and Prevention (CDC)   A division of the U.S. Public Health Service in Atlanta, Georgia, that investigates and controls various diseases especially those that have epidemic potential.  
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Enzyme-linked Immunoabsorbent Assay (ELISA)   a rapid enzyme immunochemical assay method to detect certain bacterial antigens and antibodies.  
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HIV disease   the state, in which HIV enters the body under favorable conditions and multiplies, producing injurious effects.  
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HIV infection   encompasses the immune system progressive dysfunction that is produced within the host  
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Human Immunodeficiency Virus (HIV)   a retrovirus that causes HIV infection and HIV disease.  
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Kaposi's sarcoma   a rare cancer of the skin and mucous membranes characterized by blue red or purple raised lesions.  
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Opportunistic infection   caused by normally nonpathogenic organisms in a host whose resistance has been decreased by such disorders as HIV illness.  
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Phagocyte   cell that ingests and digests of bacteria.  
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Pneumocystis jiroveci (formerly carinii) Pneumonia (PCP)   an unusual pulmonary disease caused by a fungus and primarily associated with people who have suppressed immune systems.  
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Retrovirus   a virus that carries its genetic material in RNA rather than DNA, and it replicates by converting RNA into DNA.  
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Seroconversion   a change in serologic test results from negative to positive as antibodies develop in reaction to an infection.  
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Seronegative   the state of lacking HIV antibodies as confirmed by blood test.  
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Vertical transmission   transmission from a mother to a fetus that can occur during pregnancy, delivery or through postpartum breastfeeding.  
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Viral Load   amount of measurable HIV virions in the blood.  
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Virulent   toxic.  
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Western Blot   technique for analyzing small amounts of antibodies.  
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