Weil-Felix test


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Weil-Fe·lix test

(vīl fā'liks),
a test for the presence and type of rickettsial disease based on the agglutination of X-strains of Proteus vulgaris with the suspected Rickettsia in a patient's blood serum.
Synonym(s): Weil-Felix reaction

Weil-Fe·lix test

, Weil-Felix reaction (vīl-fā'liks test, rē-ak'shŭn)
A test for the presence and type of rickettsial disease based on the agglutination of X-strains of Proteus vulgaris by rickettsiae in a patient's serum.

Weil-Felix reaction

, Weil-Felix test (vīl-fā′lĭks)
[Edmund Weil, Austrian bacteriologist, 1880–1922; Arthur Felix, Ger. bacteriologist, 1887–1956]
The agglutination of certain Proteus organisms caused by the development of Proteus antibodies in certain rickettsial diseases.

Felix,

Arthur, Polish bacteriologist, 1887-1956.
Weil-Felix reaction - Synonym(s): Weil-Felix test
Weil-Felix test - see under Weil, Edmund

Weil,

Edmund, Austrian physician, 1880-1922.
Weil-Felix reaction - Synonym(s): Weil-Felix test
Weil-Felix test - for the presence and type of rickettsial disease. Synonym(s): Weil-Felix reaction
References in periodicals archive ?
The Weil-Felix test is based on the principle that some strains of Proteus share common somatic constituents with certain species of Rickettsia.
Validity of Weil-Felix test in the diagnosis of acute rickettsial infections in Sri Lanka.
His Weil-Felix test showed 1:640 litre of OX-2 (OX-K and OX-19 were negative).
Many of the recent reports of scrub typhus and other rickettsial diseases from the Indian sub-continent are based on clinical findings and the relatively nonspecific Weil-Felix test (5) including the study by Kamarasu and co-workers (9).
The Weil-Felix test should not be used because it lacks both sensitivity and specificity.
Weil-Felix test showed significantly raised titres to proteus antigen (ag) OX 19 (1:320) and proteus Ag OX 2 (1:640), suggestive of rickettsia of spotted fever group.
Patients negative for malaria, were tested by Weil-Felix test.
Twenty-eight of 51 serum samples had titers 80-320 to Proteus OXK antigen on Weil-Felix test, of which only 13 had titers on MIF.
We report a child with fever, rash, meningoencephalitis with positive Weil-Felix test in Pune, Maharashtra.
Three sets of blood cultures, sputum cultures, and serologic tests were negative for the following: Chlamydia by microimmunofluorescence, mycoplasma by microparticle agglutination assay, urine Legionella antigen by enzyme-linked immunosorbent assay (ELISA), HIV by ELISA, Burkholderia pseudomallei (melioid) titer by immunohistochemical assay, dengue titer by hemagglutination inhibition using all tour serotypes, Leptospira titer by raicroscopic agglutination test, Widal test, Weil-Felix test, and viral culture.