Weil–Felix test

Weil–Felix test
Purposediagnosis of rickettsial infections

The Weil–Felix test is an agglutination test for the diagnosis of rickettsial infections. It was first described in 1916. By virtue of its long history and of its simplicity, it has been one of the most widely employed tests for rickettsia on a global scale, despite being superseded in many settings by more sensitive and specific diagnostic tests. The Weil–Felix antibody was recently found to target the rickettsial lipopolysaccharide O-antigen.

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