Latex test for serodiagnosis of infectious mononucleosis

B. A. Levey, T. M. Lo, K. E. Caldwell, M. A. Fletcher

Research output: Contribution to journalArticle

6 Scopus citations

Abstract

A glycoprotein was isolated from bovine erythrocytes which has 20% carbohydrate and migrates on sodium dodecyl sulfate-polyacrylamide gel electrophoresis as a single band. This glycoprotein carries the reactivity of bovine erythrocytes with Paul-Bunnell heterophile antibody of infectious mononucleosis. This bovine glycoprotein was coupled to carboxyl-modified latex particles with water-soluble carbodiimide. The resulting reagent was then used to develop a new test for the detection of infectious mononucleosis antibody. The bovine erythrocyte glycoprotein-latex reagent is more stable than sheep or horse erythrocytes, the traditional reagents for detection of infectious mononucleosis antibody. This new reagent is used in a direct slide test; no preabsorption of the sera is necessary. In the present study the glycoprotein-latex reagent compared favorably in terms of sensitivity and specificity with two standard tests for infectious mononculeosis antibody. Ninety-nine serum samples were tested. Agreement of the latex test with a stabilized horse erythrocyte spot test was 90%. Ten samples were weakly positive with the latex test and negative with the horse cell test. Only one of these was also positive with an enzyme-treated sheep cell test. This latter test was somewhat more sensitive than the latex test.

Original languageEnglish (US)
Pages (from-to)256-262
Number of pages7
JournalJournal of Clinical Microbiology
Volume11
Issue number3
DOIs
StatePublished - Jan 1 1980

ASJC Scopus subject areas

  • Microbiology (medical)

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