Evaluation of a rapid latex agglutination test for detection of group B streptococci in vaginal specimens

European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology
L Lotz-NolanB Packer

Abstract

A rapid latex agglutination test (Bactigen Group B Streptococcus Cervical Screen) for detection of group B streptococci in cervical-vaginal specimens was evaluated using two different slide systems, the traditional serologic slide and capillary action track (Trak) slide. Culture was used as reference method. A total of 344 cervical-vaginal specimens were tested. The group B streptococci carrier rate was found by culture to be 10.8%, 56.8% of these specimens being heavily colonized. The sensitivity and specificity of the latex agglutination test in heavily colonized specimens was 95.2% and 99.3% for the serologic and track slides respectively. The overall sensitivity, including lightly colonized specimens, was 62.2%. The positive predictive value was 92% for both slide systems, and the negative predictive value 95.4% and 95.6% for the serologic and track slides respectively. The latex agglutination test, used with either slide, provides a rapid and effective method for identification of specimens heavily colonized with group B streptococci. The track slide may provide a convenient alternative to serologic slides since it does not require rotation.

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Citations

Sep 1, 1995·European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology·I PoilaneA Collignon
Jul 1, 1994·European Journal of Obstetrics, Gynecology, and Reproductive Biology·A H AdriaanseT K Eskes
Jul 1, 1995·Veterinary Immunology and Immunopathology·T YamadaK Kobayashi
Apr 2, 1999·Emergency Medicine Clinics of North America·M H StewartR K Cydulka
Jan 1, 1995·Infectious Diseases in Obstetrics and Gynecology·A H AdriaanseJ A Hoogkamp-Korstanje
Jan 1, 1993·American Journal of Obstetrics and Gynecology·T ArmerK Saravanos
Feb 1, 1990·Journal of Clinical Microbiology·C M Kontnick, S C Edberg

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