Antigen used in Weil-Felix reaction______________?
Correct answer: C. Proteus
- A. E.coli
- B. Haemophilus
- C. Proteus
- D. Staphylococcus
Explanation
The Weil-Felix test detects antibodies against Proteus strains OX19, OX2 and OXK because these antigens cross-react with rickettsial antigens. It is an older, nonspecific test for rickettsial infections.
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