An immunoblotting procedure comprising O = 9,12 and H = d antigens as an alternative to the Widal agglutination assay

    loading  Checking for direct PDF access through Ovid

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.

Related Topics

    loading  Loading Related Articles