A ‘Serious’ Bloodstream Infection in an Infant
Bibliographic record
Abstract
A 10-month-old boy was brought to the emergency department with a four-day history of an erythematous central line insertion site, five months following a liver-small bowel-pancreas transplant.One day before presentation, there had been some purulent discharge from the site.Other than increased fussiness, there was no documented fever, vomiting, change in appetite or change in bowel habits.The child had not had any recent infections and no known sick contacts.He went swimming for the first time two weeks before admission, but otherwise he had no new exposures.His travel history was unremarkable.The child ate table foods, and a family favourite was Chinese food, which they ate several times a week.The patient was born at 35 weeks' gestation with gastroschisis.Within three weeks, he underwent a staged repair and after failing a refeeding protocol, he was started on total parenteral nutrition.At five months of age, he underwent a liversmall bowel-pancreas transplant for complications related to his gastroschisis, including total parenteral nutrition cholestasis, and he was sent home at seven months of age.His central venous line had been in place since his transplant.Current line care involved flushing three times a week by home care nurses, and regular cleaning with alcohol swabs by his parents.Medications included tacrolimus, sirolimus, prednisone, trimethoprim-sulfamethoxazole, ranitidine and ferrous sulphate.His immunizations were up to date and his family history was unremarkable.Physical examination revealed a nontoxic-looking 10-month-old in no apparent distress.His temperature was 36.9°C,pulse rate was 139 beats/min and respiratory rate was 36 breaths/min.A small margin around the catheter site appeared erythematous with a small amount of purulent exudate.The area around the line insertion site was not tender to palpation.Aside from surgical scars, the remainder of his examination was unremarkable.Hematological studies revealed a white blood cell count of 4.8×10 9 /L with 1.7×10 9 /L neutrophils and 2.1×10 9 /L lymphocytes.Hemoglobin level was 106 g/L and platelet count was 254×10 9 /L.Electrolyte, creatinine and urea levels were all unremarkable.Alkaline phosphatase was elevated, at 389 U/L, while alanine aminotransferase, aspartate aminotransferase and total bilirubin levels were all normal.A swab performed at the line insertion site grew coagulase-negative Staphylococcus.What did the blood culture reveal?
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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 | 0.000 | 0.004 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.002 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.003 | 0.003 |
| Insufficient payload (model declined to judge) | 0.002 | 0.001 |
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".