Chart H, Ward LR, Rowe B. An immunoblotting procedure comprising O = 9,12 and H = d antigens as an alternative to the Widal agglutination assay.
J Clin Pathol 1998;
51:854-6. [PMID:
10193329 PMCID:
PMC500982 DOI:
10.1136/jcp.51.11.854]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIMS
To compare the established Widal agglutination assay with an immunoblotting procedure.
METHODS
110 sera were used to compare the established Widal agglutination assay with an immunoblotting procedure incorporating lipopolysaccharide (LPS) (O = 9,12) and flagellar (H = d) antigens.
RESULTS
Antibodies to the LPS antigens were detected in 18 sera by the Widal assay and in 37 by immunoblotting. Antibodies to the flagellar antigens were detected in 27 sera by Widal assay and in 25 by immunoblotting.
CONCLUSIONS
An immunoblotting procedure incorporating O = 9,12 LPS and H = d flagellar antigens was rapid and more sensitive than the established Widal agglutination assay for providing evidence of infection with S typhi.
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