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Widal test

The Widal test, developed in 1896 and named after its inventor, Georges-Fernand Widal, is an indirect agglutination test for enteric fever or undulant fever whereby bacteria causing typhoid fever are mixed with a serum containing specific antibodies obtained from an infected individual. In cases of Salmonella infection, the test assesses for host antibodi…

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Based on
Seropositivity: immune agglutination reaction to specific infectious agent
Purpose
serological test for enteric fever
Test of
Typhoid fever (enteric fever)

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Widal test

Nodes20
Edges19
Triples7
Avg. degree1.9
Density0.1
Components1

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Widal test

Top relations

Based on · 1
Widal test → Seropositivity: immune agglutination reaction to specific infectious agent
Purpose · 1
Widal test → serological test for enteric fever
Test of · 1
Widal test → Typhoid fever (enteric fever)

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Important terminology

test typhoid widal fever antibodies infection salmonella igm titer igg bacteria diagnosis enteric specific serological agglutination antibody 80 causing antigen

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Widal testBased onSeropositivity: immune agglutination reaction to specific infectious agent1.00infobox
Widal testPurposeserological test for enteric fever1.00infobox
Widal testTest ofTyphoid fever (enteric fever)1.00infobox
bismuth sulfite agarinstance ofThese organisms produce H2S from thiosulfate and can be identified easily on differential media0.80text
Indian subcontinentinstance ofA single Widal test is of little clinical relevance especially in endemic areas0.80text
Africainstance ofA single Widal test is of little clinical relevance especially in endemic areas0.80text
South-east Asiainstance ofA single Widal test is of little clinical relevance especially in endemic areas0.80text

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