Kang, G. ; Sridharan, G. ; Jesudason, M. V. ; John, T. J. (1992) Evaluation of modified passive haemagglutination assay for Vi antibody estimation in Salmonella typhi infections Journal of Clinical Pathology, 45 (8). pp. 740-741. ISSN 0021-9746
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Official URL: http://jcp.bmj.com/content/45/8/740.short
Related URL: http://dx.doi.org/10.1136/jcp.45.8.740
Abstract
A simple passive haemmagglutination assay (PHA) was developed to detect Vi antibodies, to improve the diagnosis of typhoid fever by small laboratories. The Vi capsular antigen of Salmonella typhi was extracted by alternate alcohol and acetone precipitation. Formalin fixed, sheep red blood cells treated with chromium chloride were sensitised with this Vi antigen and antibodies detected and measured by PHA. The test had a sensitivity of 83.3% among 30 cases of typhoid fever confirmed by culture. The specificity of the test was 94%, making it suitable for use in laboratories without facilities for IFAT or ELISA.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to BMJ Publishing Group. |
| ID Code: | 93244 |
| Deposited On: | 14 Jun 2012 12:50 |
| Last Modified: | 14 Jun 2012 12:50 |
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