MétaCan
Menu
Back to cohort
Record W4416448186 · doi:10.1016/j.idcr.2025.e02434

First case of bloodstream infection caused by Cupriavidus metallidurans in Japan

2025· article· en· W4416448186 on OpenAlex
Kozi Hosoya, Satomi Takei, Naoya Ogura, Ayako Nakamura, Hidenori Yoshii, Tomomi Matsubara, Tadashi Miyazaki

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueIDCases · 2025
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicInfections and bacterial resistance
Canadian institutionsnot available
Fundersnot available
Keywords16S ribosomal RNABloodstream infectionGram stainingAntibioticsBacteremiaPhylogenetic treeBlood cultureRibosomal RNA

Abstract

fetched live from OpenAlex

We report the first case in Japan of a bloodstream infection caused by Cupriavidus metallidurans . The patient was a 77 years old man hospitalized for treatment of heart failure and diabetes. On day 83 of hospitalization, he developed a fever of 38.0°C, followed three days later by an elevation in C-reactive protein. His condition improved with the administration of cefmetazole, cefepime, and levofloxacin, and antibiotic therapy was discontinued on day 17. Blood cultures collected at the onset of fever revealed growth in the aerobic bottle after 21 h, and Gram staining revealed slightly slender Gram-negative rods. Based on colony morphology, Burkholderia or Ralstonia was initially suspected. However, identification kit ID Test NF-18 yielded multiple possible organisms, and a definitive identification could not be made. The isolate was ultimately identified as C. metallidurans by phylogenetic analysis of the 16S rRNA gene. Because this species is not included in general bacterial identification kits and cannot be reliably distinguished based biochemical characteristics alone, 16S rRNA gene sequencing was essential for diagnosis. To date, only five cases of bloodstream infection caused by this species have been reported, in Canada and Italy, and this is the first reported case in Japan. As this bacterium is present in the Japanese environment, reports of its detection may increase in the future, particularly among elderly or immunocompromised patients.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.058
Threshold uncertainty score0.496

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.005
GPT teacher head0.255
Teacher spread0.249 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it