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1.
Infect Prev Pract ; 6(3): 100379, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39006243

RESUMO

Members of the genus Phytobacter (order Enterobacterales) are isolated from the natural environment and clinical settings. Identification of Phytobacter strains based on biochemical characteristics is complicated due to taxonomic confusion, and they are often misidentified by automated identification systems in laboratories. In this study we describe the first three clinical cases associated with Phytobacter spp. reported in Argentina. We describe the identification, the molecular analysis using whole genome sequencing and the potential clinical relevance.

5.
J Clin Microbiol ; 50(3): 1086-8, 2012 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-22205811

RESUMO

Bifidobacterium species are difficult to identify and may be underreported or not recovered by many laboratories because of their slow growth. We emphasize the importance of the Gram stain in urine samples and the addition of enriched media and enhanced atmosphere over time for urine cultures with pyuria. This is the first report of a Bifidobacterium scardovii recurrent urinary infection in an elderly woman.


Assuntos
Infecções por Bifidobacteriales/diagnóstico , Infecções por Bifidobacteriales/patologia , Bifidobacterium/classificação , Bifidobacterium/isolamento & purificação , Idoso de 80 Anos ou mais , Técnicas de Tipagem Bacteriana , Técnicas Bacteriológicas/métodos , Infecções por Bifidobacteriales/microbiologia , Bifidobacterium/genética , Análise por Conglomerados , DNA Bacteriano/química , DNA Bacteriano/genética , DNA Ribossômico/química , DNA Ribossômico/genética , Feminino , Violeta Genciana , Humanos , Dados de Sequência Molecular , Fenazinas , Filogenia , Piúria/diagnóstico , Piúria/microbiologia , Piúria/patologia , RNA Ribossômico 16S/genética , Recidiva , Análise de Sequência de DNA , Urina/microbiologia
6.
Diagn Microbiol Infect Dis ; 57(2): 183-8, 2007 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-17049799

RESUMO

Non-enterococcal Gram-positive bacteria that are intrinsically vancomycin-resistant have been infrequently isolated in association with serious infections. However, well-documented infections have lately been reported with increasing frequency. Because these organisms may be pathogens, we tested the MICs of 19 antimicrobial agents by the agar dilution method for predicting susceptibility. The activity of these antimicrobial agents was assessed against 28 strains (Lactobacillus rhamnosus, 6; Lactobacillus acidophilus, 1; Lactobacillus casei, 1; Lactobacillus fermentum, 2; Lactobacillus brevis, 1; Lactobacillus plantarum, 1; Weissella confusa, 2; Leuconostoc mesenteroides, 7; Leuconostoc lactis, 4; Pediococcus acidilactici, 2; Pediococcus pentosaceus, 1), isolated from clinical specimens in an Argentinian university hospital from 1997 to 2003. The MICs of penicillin for 67% of the Lactobacillus strains and 100% of the Leuconostoc spp. and Pediococcus spp. strains tested were in the 0.25-2 microg/mL range. Erythromycin was the most active antimicrobial overall. Multiresistance was observed in 2 strains (Lactobacillus rhamnosus, 1; Lactobacillus plantarum, 1).


Assuntos
Antibacterianos/farmacologia , Glicopeptídeos/farmacologia , Bactérias Gram-Positivas/efeitos dos fármacos , Resistência a Vancomicina , Argentina , Farmacorresistência Bacteriana , Eritromicina/farmacologia , Bactérias Gram-Positivas/classificação , Bactérias Gram-Positivas/isolamento & purificação , Infecções por Bactérias Gram-Positivas/microbiologia , Hospitais Universitários , Humanos , Testes de Sensibilidade Microbiana/métodos
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