Canadian Journal of Infectious Diseases and Medical Microbiology

Canadian Journal of Infectious Diseases and Medical Microbiology / 2015 / Article

CPHLN Laboratory Guidelines | Open Access

Volume 26 |Article ID 152039 | https://doi.org/10.1155/2015/152039

Ameeta E Singh, Max A Chernesky, Muhammad Morshed, Tom Wong, "Canadian Public Health Laboratory Network laboratory Guidelines for the Use of Point-of-Care Tests for the Diagnosis of Syphilis in Canada", Canadian Journal of Infectious Diseases and Medical Microbiology, vol. 26, Article ID 152039, 4 pages, 2015. https://doi.org/10.1155/2015/152039

Canadian Public Health Laboratory Network laboratory Guidelines for the Use of Point-of-Care Tests for the Diagnosis of Syphilis in Canada

Abstract

Syphilis point-of-care tests (POCT) are widely available in developing countries enabling early diagnosis, treatment and support. The majority of commercially available tests use treponemal antigens and the presence of antibodies does not distinguish between current and past infection, which may lead to unnecessary antibiotic use and stigmatization of having a current STI. In hard-to-reach populations, the benefits may outweigh the risks. Available studies show reasonable performance of POCT with median sensitivity of 86%, specificity of 99% and positive predictive values >80% when prevalence was >0.3%. Although no syphilis POCT are approved in Canada at this time, a single study in an outreach setting in Alberta showed limited benefit due to a high prevalence of previous infection but more studies are needed. Newer dual tests employing treponemal and nontreponemal antigens look promising.

Copyright © 2015 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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