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  • Author: Steliana Huhulescu x
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Dragos Florea, Steliana Huhulescu, Alexander Indra, Ioana Badicut, Alexandru Rafila, Dan Otelea and Gabriel Adrian Popescu

Abstract

In recent years Clostridium difficile infection (CDI) has represented a serious public health issue, mainly due to the global spread of the hypervirulent strain NAP1/027/BI. The purpose of the present study was to evaluate the utility of a PCR coupled with electrospray ionization mass spectrometry (ESI-MS) commercial assay for the detection of C. difficile virulence markers. Non-duplicative C. difficile isolates from patients with CDI diagnosed in a tertiary level hospital from Bucharest were tested for toxin A, toxin B, binary toxin genes and deletion in tcdC gene using PCR/capillary gel electrophoresis and PCR/ESI-MS. The study analysed 45 non-duplicative isolates, 33 strains (73.3%) belonging to ribotype 027. The concordance between PCR/capillary gel electrophoresis and PCR/ESI-MS was 100% for toxin A gene, 97.8% for toxin B gene, 91.1% for binary toxin subunit A gene and 95.6% for binary toxin subunit B gene. The general concordance for the complete panel of markers was 88.9% but was 100% for ribotype 027 isolates. PCR/ESI-MS might be a valid method for the detection of C. difficile virulence markers, including binary toxin.

Open access

Cristina Popescu, Gabriel Adrian Popescu, Olga Dorobăț, Alexandru Rafilă, Diana Tănase, Claudia Mikula, Gudrun Weissensteiner and Steliana Huhulescu

Abstract

We report first description of clinical cases of OXA-48 carbapenemase-producing Klebsiella pneumoniae originating from patients hospitalized in the most important Infectious Diseases Hospital from Romania, between December 2012 and March 2013. All strains were isolated from patients who were previously admitted in surgical wards. None of the patients had been admitted in a hospital outside of Romania.