Characterization of <i>bla</i> <sub>KPC-2</sub> -Harboring <i>Klebsiella pneumoniae</i> Isolates and Mobile Genetic Elements from Outbreaks in a Hospital in Ecuador
Why this work is in the frame
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Bibliographic record
Abstract
Aim: To investigate the mobile genetic elements harboring bla KPC gene in carbapenem-resistant Klebsiella pneumoniae recovered during a 6-month outbreak in a high-complexity hospital from Ecuador. Results: A total of 62 isolates belonging to ST258 pilv-I -positive ( n = 45), ST25 serotype K2 ( n = 8), ST348 ( n = 6), ST42 ( n = 1), ST196 ( n = 1), and ST1758 ( n = 1) were collected from intensive care unit (ICU), neurosurgery, burn unit, internal medicine, pneumology, and neurology. Pulsed-field gel electrophoresis analysis showed two major clusters of ST258 and ST25 related to bloodstream infections and pneumonia circulating in ICU. The PCR assay showed that in non-ST258 isolates, the bla KPC-2 gene were located on the Tn 4401a transposon inserted in the transferable pKpQIL-like IncFII K2 plasmid; the whole-genome sequencing of ST258 clone showed two plasmids, the bla KPC-2 gene was located on nonconjugative IncR plasmid, whereas the IncFIB/IncFII plasmid lacked ß-lactamase genes. We found an IncM plasmid in bla KPC-2 -harboring Klebsiella pneumoniae ST1758 clone. Conclusions: These findings highlight the presence of pKpQIL-like plasmids in non-ST258 and nonconjugative plasmids in ST258 isolates causing hospital outbreaks.
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Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it