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. 2016 Feb 15:11:8-16.
doi: 10.1016/j.nmni.2015.10.012. eCollection 2016 May.

Actinobaculum schaalii: A truly emerging pathogen?: Actinobaculum schaalii: un pathogène réellement émergent?

G Prigent  1 , C Perillaud  1 , M Amara  1 , A Coutard  1 , C Blanc  2 , B Pangon  1
Affiliations

Actinobaculum schaalii: A truly emerging pathogen?: Actinobaculum schaalii: un pathogène réellement émergent?

G Prigent et al. New Microbes New Infect. .

Abstract
in English, French

Actinobaculum schaalii is a Gram-positive facultative anaerobe bacillus. It is a commensal organism of the genitourinary tract. Its morphology is nonspecific. Aerobic culture is tedious, and identification techniques have long been inadequate. Thus, A. schaalii has often been considered as a nonpathogen bacterium or a contaminant. Its pathogenicity is now well described in urinary tract infections, and infections in other sites have been reported. This pathogen is considered as an emerging one following the growing use of mass spectrometry identification. In this context, the aim of our study was to evaluate the number of isolations of A. schaalii before and after the introduction of mass spectrometry in our hospital and to study the clinical circumstances in which isolates were found.

Actinobaculum schaalii est un bacille à Gram positif anaérobie facultatif. Il s'agit d'un germe commensal du tractus génito-urinaire. Sa morphologie est aspécifique. La culture est fastidieuse en aérobiose et les techniques d'identification ont longtemps été insuffisantes. De ce fait, il a souvent été considéré comme un germe non pathogène ou un contaminant. Sa pathogénicité est aujourd'hui bien décrite dans les infections urinaires, mais des infections au niveau d'autres sites ont été rapportées. Ce pathogène considéré comme émergent, voit en réalité son nombre d'isolats augmenter depuis l'introduction de la spectrométrie de masse. Dans ce contexte, le but de notre étude est d'évaluer le nombre d'isolements d'Actinobaculum schaalii avant et après l'introduction de la spectrométrie de masse dans notre centre hospitalier et d'étudier les circonstances cliniques dans lesquelles ces isolats ont été retrouvés.

Keywords: Actinobaculum schaalii; Actinotignum schaalii; Gram-positive bacilli; emerging infections; mass spectrometry; urinary tract infections.

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Figures

Fig. 1
Fig. 1
Statistiques des scores (maximum, médiane, minimum) pour les 3 premières propositions (17 isolats)
Fig. 1
Fig. 1
Statistical scores (maximum, median, minimum) for first three proposals (17 isolates).
See this image and copyright information in PMC

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