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The strain GD9T is the type strain of the newly proposed species Blautia massiliensis sp. nov., belonging to the family Lachnospiraceae. It was isolated from a fresh stool sample collected from a healthy human using the culturomics strategy. Cells are Gram-negative rods, oxygen intolerant, non-motile and non-spore forming. The 16S rRNA gene sequencing showed that strain GD9T was closely related to...
Peptoniphilus harei is a Gram-positive anaerobic coccus mainly involved in polymicrobial infections. We report a case of peritoneal infection in a patient with intestinal occlusion. A 48-year-old woman presented with ascitis after an occlusive syndrome. Culture of peritoneal fluid resulted on P. harei isolation. Treatment was performed and resolution of this infection was documented.
We studied the performance characteristics of two blood culture (BC) bottles/systems, (i) BacT/ALERT-FN Plus/3D (bioMérieux, Marcy l’Étoile, France) and (ii) BACTEC-Lytic/9000 (Becton Dickinson, Sparks, USA) for detection of growth and time-to-positivity (TTP) against a balanced and diverse collection of anaerobic bacterial strains (n = 48) that included reference strains (n = 19) and clinical isolates...
Bifidobacterium species are anaerobic, Gram-positive bacilli that colonize the human intestinal tract and oral cavity. They are an infrequent cause of invasive human infection. We report a case of Bifidobacterium longum lumbar vertebrodiscitis in a 71 year old man who was subsequently diagnosed with liver cirrhosis and prostate cancer. The clinical outcome was good following antibiotic treatment with...
Finegoldia magna is a Gram-positive anaerobic coccus involved in a wide variety of infections. We report a unusual case of breast abscess in a non-puerperal patient. A 46-year-old woman presented with pain and a nodular lesion in the left breast. Culture of abscess drainage resulted in isolation of F. magna. Initial treatment with clindamycin was changed to a definitive treatment with amoxicillin-clavulanate...
We designed species-specific primers and developed a qPCR method for enumerating P. histicola from intestinal samples. The two designed primer sets showed specificity for the target 16S rRNA gene of P. histicola. The absolute qPCR method was sensitive to quantify as few as 103 colony-forming units (CFU) in the gut.
Prevotella buccae is a Gram-negative anaerobic rod involved in some human infections. We report the first case of an infected breast cyst in a non-puerperal women due to this pathogen. A 53-year-old woman presented with pain and a cystic lesion in the right breast. Culture of abscess drainage resulted in isolation of P. buccae. High level of resistance to metronidazole was documented. Treatment with...
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