Weil-Felix reaction

noun
Weil-Fe·lix reaction | \ˈvī(ə)l-ˈfā-liks- \

Medical Definition of Weil-Felix reaction 

: an agglutination test for various rickettsial infections (as typhus and Rocky Mountain spotted fever) using particular strains of bacteria of the genus Proteus that have antigens in common with the rickettsiae to be identified

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