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Review
. 2017 Jun:469:1-9.
doi: 10.1016/j.cca.2017.03.014. Epub 2017 Mar 16.

Lessons learned with molecular methods targeting the BCSP-31 membrane protein for diagnosis of human brucellosis

Rocio Sanjuan-Jimenez  1 , Juan D Colmenero  2 , Pilar Morata  3
Affiliations
Review

Lessons learned with molecular methods targeting the BCSP-31 membrane protein for diagnosis of human brucellosis

Rocio Sanjuan-Jimenez et al. Clin Chim Acta. 2017 Jun.

Abstract

Brucellosis remains an emerging and re-emerging zoonosis worldwide causing high human morbidity. It usually affects persons who are permanently exposed to fastidious microorganisms of the Brucella genus and has a nonspecific clinical picture. Thus, diagnosis of brucellosis can sometimes be difficult. Molecular techniques have recently been found very useful in the diagnosis of brucellosis together with its common and very diverse focal complications. We herein review all the lessons learned by our group concerning the molecular diagnosis of human brucellosis over the last twenty years. The results, initially using one-step conventional PCR, later PCR-ELISA and more recently real-time PCR, using both fluorescent intercalating reagents (SYBR-Green I) and specific probes (Taqman), have shown that these techniques are all much more sensitive than bacteriological methods and more specific than the usual serological techniques for the diagnosis of primary infection, the post-treatment control of the disease, early detection of relapse and the diagnosis of focal complications. Optimization of the technique and improvements introduced over the years show that molecular methods, currently accessible for most clinical laboratories, enable easy rapid diagnosis of brucellosis at the same time as they avoid any risk to laboratory personnel while handling live Brucella spp.

Keywords: BCSP-31 targeting; Human brucellosis; Lessons learned; Molecular diagnosis.

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