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. 1972 Oct;24(4):525–534. doi: 10.1128/am.24.4.525-534.1972

Development and Evaluation of a Simple Latex Agglutination Test for Diagnosis of Tuberculosis1

R V Cole a,2, A W Lazarus a, H G Hedrick a
PMCID: PMC380607  PMID: 4628793

Abstract

A simple latex agglutination test (SLAT) based on modifications of existing serodiagnostic techniques, in which commercially available reagents are used, was developed for detection of antibodies against Mycobacterium tuberculosis. Tests performed on 553 serum samples from 316 individuals, including 117 bacteriologically confirmed active tuberculosis patients, showed 80% positive titers. Sera from 12 patients with arrested tuberculosis showed 91% positive titers. Nonspecific reactions were noted in 5% of 160 serums from selected normal individuals and patients with diseases other than tuberculosis. The antibodies detected by the SLAT method were found to be relatively stable when exposed to low temperatures, whereas high temperatures reduced the antibody titer considerably. Disodium ethylenediaminetetraacetic acid inactivation of serum complement was found to be satisfactory. No variation of tuberculosis antibody titer was noted in tests on multiple specimens from patients whose conditions were stabilized. However, considerable fluctuation was encountered in antibody titers obtained on recently detected individuals. Data obtained in this study indicate that the modified procedures of the SLAT method could replace the tuberculin skin test for simple screening of tuberculosis in adults.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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