Bactériémie à Neisseria subflava subsp. perflava : à propos d'un cas et revue de la littérature

Lavigne, Jean Philippe; LEBAYON, A; Michaux‐Charachon, Sylvie; Arich, C; Bouziges, N.; Campello, Chantal; Sotto, Albert

doi:10.1016/s0399-077x(04)00144-1

Cited by 3 publications

(1 citation statement)

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“…Indeed, biochemical tests are not reliable due to high phenotypic similarity between Neisseria spp (7). Some laboratories rely on the 16S rRNA gene sequencing to resolve this issue (8,9). Until now, no accurate ideal 'gold standard' is available and commonly used for speciation of Neisseria (10).…”

Section: Discussionmentioning

confidence: 99%

Case report of bacteremia due to Neisseria mucosa

Mechergui¹,

Achour²,

Baaboura³

et al. 2013

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Neisseria mucosa, a Gram-negative diplococcus, is part of normal nasopharyngeal flora. We report a case of bacteremia caused by N. mucosa in a 50-year-old neutropenic patient suffering from non-secretory multiple myeloma stage IIIA. This case underscores that mostly nonpathogenic N. mucosa can cause bacteremia in neutropenic patients who developed mucositis after hematopoietic stem cell transplantation.

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Section: Discussionmentioning

confidence: 99%

Case report of bacteremia due to Neisseria mucosa

Mechergui¹,

Achour²,

Baaboura³

et al. 2013

APMIS

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Molecular typing of Neisseria perflava clinical isolates

Mechergui

Achour

Giorgini

et al. 2012

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Biofilms on Hospital Shower Hoses: Characterization and Implications for Nosocomial Infections

Soto-Girón

Rodriguez-R

Luo

et al. 2016

Appl Environ Microbiol

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e Although the source of drinking water (DW) used in hospitals is commonly disinfected, biofilms forming on water pipelines are a refuge for bacteria, including possible pathogens that survive different disinfection strategies. These biofilm communities are only beginning to be explored by culture-independent techniques that circumvent the limitations of conventional monitoring efforts. Hence, theories regarding the frequency of opportunistic pathogens in DW biofilms and how biofilm members withstand high doses of disinfectants and/or chlorine residuals in the water supply remain speculative. The aim of this study was to characterize the composition of microbial communities growing on five hospital shower hoses using both 16S rRNA gene sequencing of bacterial isolates and whole-genome shotgun metagenome sequencing. The resulting data revealed a Mycobacterium-like population, closely related to Mycobacterium rhodesiae and Mycobacterium tusciae, to be the predominant taxon in all five samples, and its nearly complete draft genome sequence was recovered. In contrast, the fraction recovered by culture was mostly affiliated with Proteobacteria, including members of the genera Sphingomonas, Blastomonas, and Porphyrobacter. The biofilm community harbored genes related to disinfectant tolerance (2.34% of the total annotated proteins) and a lower abundance of virulence determinants related to colonization and evasion of the host immune system. Additionally, genes potentially conferring resistance to ␤-lactam, aminoglycoside, amphenicol, and quinolone antibiotics were detected. Collectively, our results underscore the need to understand the microbiome of DW biofilms using metagenomic approaches. This information might lead to more robust management practices that minimize the risks associated with exposure to opportunistic pathogens in hospitals.

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Bactériémie à Neisseria subflava subsp. perflava : à propos d'un cas et revue de la littérature

Cited by 3 publications

References 0 publications

Case report of bacteremia due to Neisseria mucosa

Case report of bacteremia due to Neisseria mucosa

Molecular typing of Neisseria perflava clinical isolates

Biofilms on Hospital Shower Hoses: Characterization and Implications for Nosocomial Infections

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