| D003168 |
Complement Fixation Tests |
Serologic tests based on inactivation of complement by the antigen-antibody complex (stage 1). Binding of free complement can be visualized by addition of a second antigen-antibody system such as red cells and appropriate red cell antibody (hemolysin) requiring complement for its completion (stage 2). Failure of the red cells to lyse indicates that a specific antigen-antibody reaction has taken place in stage 1. If red cells lyse, free complement is present indicating no antigen-antibody reaction occurred in stage 1. |
Complement Absorption Test, Conglutinating,Conglutination Reaction,Conglutinating Complement Absorption Test,Complement Fixation Test,Conglutination Reactions,Fixation Test, Complement,Fixation Tests, Complement,Reaction, Conglutination,Reactions, Conglutination,Test, Complement Fixation,Tests, Complement Fixation |
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| D005189 |
False Positive Reactions |
Positive test results in subjects who do not possess the attribute for which the test is conducted. The labeling of healthy persons as diseased when screening in the detection of disease. (Last, A Dictionary of Epidemiology, 2d ed) |
False Positive Reaction,Positive Reaction, False,Positive Reactions, False,Reaction, False Positive,Reactions, False Positive |
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| D006801 |
Humans |
Members of the species Homo sapiens. |
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man |
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| D001688 |
Biological Products |
Complex pharmaceutical substances, preparations, or matter derived from organisms usually obtained by biological methods or assay. |
Biologic,Biologic Drug,Biologic Product,Biological,Biological Drug,Biological Medicine,Biological Product,Biologics,Biopharmaceutical,Natural Product,Natural Products,Biologic Drugs,Biologic Medicines,Biologic Pharmaceuticals,Biologic Products,Biological Drugs,Biological Medicines,Biologicals,Biopharmaceuticals,Products, Biological,Drug, Biologic,Drug, Biological,Drugs, Biologic,Drugs, Biological,Medicine, Biological,Medicines, Biologic,Medicines, Biological,Pharmaceuticals, Biologic,Product, Biologic,Product, Biological,Product, Natural |
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| D013587 |
Syphilis |
A contagious venereal disease caused by the spirochete TREPONEMA PALLIDUM. |
Great Pox |
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| D013592 |
Syphilis, Latent |
The stage of syphilis that occurs following the primary (CHANCRE) and secondary stages. The patient is asymptomatic at the latent stage but remains seropositive for the SPIROCHETE. |
Latent Stage Syphilis,Syphilis, Latent Stage |
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