e/Weil-Felix test

Information
has gloss	eng: A Weil-Felix reaction is a type of agglutination test in which patients serum is tested for agglutinins to O antigen of certain non-motile Proteus and rickettsial strains(OX19, OX2, OXk) OX19, OX2 are strains of Proteus vulgaris. OXk is the strain of Proteus mirabilis. Test is done as tube agglutination test though, slide agglutination has also been employed. Sera from endemic typhus agglutinate OX19, OX2. Tick borne spotted fever agglutinate OX19, OX2. Scrub Typhus agglutinate OXk strain. Test is negative in rickettsialpox, trench fever and Q-fever. False positive reaction may occur in urinary or other Proteus infections Test may be negative in 50 percent scrub typhus.
lexicalization	eng: Weil-Felix test
instance of	(noun) a serologic analysis of a sample of blood blood test