Negative Feifei test
Wai Fei test: Proteus OXl9, OX2, OXK with non-specific agglutination reaction with Rickettsia common bacterial body antigen for non-specific agglutination reaction to detect the presence or absence of Rickettsia antibodies in the patient's serum. The Weife test is also called Proteus agglutination test, which is used to diagnose acute infectious diseases such as typhus typhus and roundworm.
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