Bacteraemia and obstructive pyelonephritis caused by Bifidobacterium breve in an elderly woman: a case report and literature review

spp. are non-spore-forming Gram-positive anaerobes that are indigenous to the human gastrointestinal tract and vagina. They are believed to be non-pathogenic organisms for humans and thus are widely used as probiotics. An 83-year-old woman taking cephalexin for 4 days was diagnosed with obstructive...

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Bibliographic Details
Published in:Access microbiology 2023-10, Vol.5 (10)
Main Authors: Nishio, Mitsuru, Morioka, Hiroshi, Takai, Shun, Osada, Yukari, Seki, Yoshie, Osugi, Takato, Oba, Airi, Miyaki, Yuki
Format: Article
Language:English
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Case Reports
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Summary:spp. are non-spore-forming Gram-positive anaerobes that are indigenous to the human gastrointestinal tract and vagina. They are believed to be non-pathogenic organisms for humans and thus are widely used as probiotics. An 83-year-old woman taking cephalexin for 4 days was diagnosed with obstructive pyelonephritis. Y-branched Gram-positive rods were found in both anaerobic and aerobic blood culture bottles, and in an anaerobic urine culture. was finally identified. Ceftriaxone and metronidazole were administered to the patient, and she was discharged after intermittent catheterization for dysuria. Urinary tract infection caused by spp. is believed to be rare, but it can develop in patients with underlying urological conditions. Recognition of the characteristic morphology and conducting anaerobic urine culture may help in identifying more cases of urinary tract infections.
ISSN:2516-8290
2516-8290
DOI:10.1099/acmi.0.000574.v3