Outbreak of pseudomonas aeruginosa by multiple organ transplantation from a common donor1
Bibliographic record
Abstract
Transmission of bacterial infections from donor to recipient may occur with donor bacteremia. We describe a novel mechanism for transmission of Pseudomonas to multiple recipients through direct contamination of a donor innominate artery graft. Patient data were collected by chart review from the donor and the kidney, kidney-pancreas, heart, lung, and liver recipients. The donor was not bacteremic but had P. aeruginosa isolated from routine tracheal cultures. Spillage of tracheal contents onto the innominate artery and subsequent contamination of intra-abdominal organs likely occurred. Vascular anastomotic infections with graft loss caused by Pseudomonas occurred in three patients (liver, kidney, and kidney-pancreas), and the lung patient developed severe pneumonia. All Pseudomonas isolates were identical by molecular typing. Donors may transmit bacterial infections to multiple recipients by mechanisms other than donor bacteremia. Although donor tracheal cultures are commonly positive, in certain settings antimicrobial treatment of recipients may be needed.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.003 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 0.002 |
| Insufficient payload (model declined to judge) | 0.001 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".